30 mins? Why not? The sadist in me is on board 
I'm new in the campaign so I should normally keep my mouth shut but it's also a forum where you discuss things, and a forum is also where you read others' opinions, so if it takes you 5-6 minutes to write yours you should also spend 10-15 to read others, right?
I know it sounds a bit extreme and probably I could write 3 posts in that interval but, let's look at my stats on BTT:
Total time logged in: 317 days, 13 hours and 2 minutes.
Posts: 14871
457262 minutes / 14871 = > drumrolllllllll > 30.74 minutes!
So, why not? Run the experiment a few weeks and let's draw a conclusion afterward!
On the one hand - mathematically, everything is correct, no complaints

But... this is an indicator of the "average temperature in the hospital" - ie, this is the temperature of patients with temperatures from 28 degrees to 45, on average they give 36.5 degrees, ie, everything is fine, but here I have doubts that patients agree with this

On the other hand, and on my own example I can say - 12 hours "sit on the forum" is not possible. For example, there was an hour of time - went, found interesting topics/posts/answers to your correspondence - and for an hour you answer, and objectively it will be 3-5-10 minutes between answers.....
PS Although I have to admit - here on the forum is not very "heated arguments" with a huge activity, here people still write more measured ...