Many thanks for the information.

That post was made 4 years back, in 2015. Actually I don't remember about the post. But back then I was not serious about posting and might have committed some rule violations.

But they could have banned me in 2015. Then it could have been easier for me to create a fresh account and by now I would have got my new account to Legendary rank. Handing out a ban in 2019 for something that I did four years ago is weird.

Anyway, I don't intend to appeal now. I guess I will do something else during my spare time, or just concentrate on my full-time job.

Once again, many thanks for your post. For the past 10-15 days I was wondering what could have caused the ban. 

I was banned last month. (Here is my profile: https://bitcointalk.org/index.php?action=profile;u=86256).

I tried appealing the ban through email, but I got no response.

I am a member of this forum for the last 6½ years, and I think if someone wants to ban me then he should at least have the decency to tell me the reason for my ban.