Normally, when you hit "Remove" option on your post, it'll disappear on topic and your post count decreases. But it doesn't mean that your post was completely deleted. In fact, it was moved to "Trash" (can imagine that "Trash" is similar to "Recycle Bin" in Windows). You and other people still can see it in your post history. Here's an example:

Before delete:


After delete:


Still appear on your post history:


How to make it gone for good?
On your post history, right click on the title: "Trash / Re: Altcointalks Forum In 2020", choose "Open link in new tab" to see its location on "Trash". Click on "Remove" again and it'll be gone forever.

There are some factors affecting pointing systems, as "admin" once mentioned:

there is 3 systems of compensation on posts and replies
1- the flat compensation : 1 point per reply / i sometimes vary it but currently at 1 point
2- the per word system : currently disabled because we are working some modifications on it / will be activated if / when over.
3- karma > which should be the main drive behind replies > quality replies get karma , 1 karma = 10-60 points when processed on withdrawal

Karma was born to promote posting and post quality but it doesn't play any role in awarding point. A poster with high amount of karma tends to produce higher quality post than a low-karma poster. Besides, posts on "News related to cryptos", "Blockchain and technology", "Legality & Taxation of Cryptos", "Banks & Cryptos" and their child boards, which mostly are copy-paste from news article should be low-pointed.

Ponzi Scheme definition
Ponzi Scheme is a from of scam which takes money from new investors to pay older investors. People taking part in Ponzi Scheme are lured to believe that their returns are from ligitimate sources and are encouraged to attract new investors through referral bonuses. In fact, Ponzi Scheme collapses when there’s no more newcomer.

Origin of Ponzi Scheme
The scheme was named after Charles Ponzi in 1919. At that time, the postal service developed something called “international mail coupon”, allowing mail receivers to buy priority airmail postage stamps needed to send replies. Realizing the fluctuation of stamps price, Ponzi planned to make money by buying stamps at low prices (with mail coupons) and then sell them at higher prices (this also known as a type of arbitraging).

The story didn’t end there. Greediness made Ponzi expanded his business. He sought investors and promised them a return of 50% in just 45 days. But instead of focusing on stamp arbitraging, Ponzi paid old investors by new investors’ money. Ponzi was so success that he made $ 420,000 (approx $5.13 mil in 2017 money) by May 1920. Charles Ponzi was arrested on August 12, 1920 and sentenced 14 years in jail.

Ponzi Scheme Red flags
The most prominent sign of Ponzi Scheme is high investment returns with low risk. Of course, everybody may have heard of “high risk, high return” but people are usually blinded by their greediness, especially lesser educated people. 1% per day, 50% in 45 days or any returns that distant from bank interest rate are suspicious. Other indicators are:
-   Consistent returns regardless of market situations
-   Lack of transparancy: no name, no contact nor office addresss
-   Difficulty withdrawing investment

How to avoid Ponzi
It’s very difficult to cash out once you’re involved in Ponzi Scheme. So the only way to avoid Ponzi is to stay away from it and report to authority. Keep your head cool before fancy words of other people, something like risk-free, high return…

Top 5 most famous Ponzi Schemes in crypto world
1.   Bitconnect: Initially being released on early 2016, bitconnect had a long journey in crypto world before being accused by the US government in early 2018.
2.   Pincoin & iFan: Lesser educated people are the easiest to fall for scams. This is an ordinary example.
3.   OneCoin: Rather than Pincoin & iFan, OnceCoin is a multinational scam, involving in India, Thailand, Croatia, Bulgaria, Norway and Finland.
4.   Regalcoin: Combining MLM and Ponzi, Regalcoin used to be very famous in South East Asia before collapse following other Ponzi coins such as Bitconnect.
5.   Hextracoin: Following Regalcoin’s footstep, Hextracoin had a short time of success in late 2017. This Ponzi Scheme made some people rich but also made a lot of people homeless.

I'm not sure if they're bugs or can be fixed by forums settings. Let's just discuss...

1. Remember password
Even I choose "Forever" on the small box next to the "Login" button, I have to re-type Username and Password on the next log in (same web browser, no log-out from anywhere). This is a popular feature as it can be found in any other websites. Hope we'll have it in near future.

2. 3-step log in on other device
When I log in on my company PC, it takes me 3 tries to be successful. At the first, it goes:


And this is what it's like on the second try:


I only have a successful log in on the third try. It's really time consuming.

3. "Altcoinstalks Quick Guide" banner

I know that this banner was born to remind us about the forum rules but I already remember all of its content after a few times reading. Is there anyway that it would disappear? Maybe when I rank up from Newbie or after a few hundred of times it's shown to me?

... to be updated

I can see that karma of ALTT and merit of BTT have a same purpose (increase post quality) but I can't see karma statistics of a random member in detail (except the number of karma he/she gets). Is there anyway that I can know from whom and from what post/topic a member received karma (like merit on BTT)?

I know that ALTT is different from BTT and so are karma and merit. In fact, karma of ALTT has even more cool utilities than merit. But, showing detailed statistics of karma brings the fairness to the forum and from that newbies like me have some guidances on improving post quality.