I wouldn't even recommend discussing your salary from your regular job with people you don't trust.
Do people really do this? I'm really surprised if that was the case. I've been doing some door-to-door interviews in the past, and even if I find someone who likes to boast about his achievement, they never say how much they make each year. At best they said they can buy one or two motorcycles each month, but that's that. That's still pretty dangerous though, but no one ever discusses their salary openly. I don't think that's necessary to tell people you can use Bitcoin to pay for stuff anyway.
If we talk about crypto though, I often find people discuss it openly, but never specifically mention that they hold Bitcoin or something similar. In fact, I found people like to discuss it online instead. Maybe it is different for each country, but that's my experience so far. Most people that I know who participate in crypto are from forums or social media, to begin with.
Yes, there are people who's fine discussing the exact digits of their salary, which they don't know that it is confidential and shouldn't be discussing to anyone. Even if the person you are talking to is someone you trust, and I believe even with your partner, the exact digits shouldn't be discussing.
In crypto, that's the same as me. I often see people with crypto investment in social media, especially in cryptocurrency group discussion, posting the amount of investment they have with different questions/flexing their money, and any other reason. Which they shouldn't be in the very first place.