OK, first I must apologize if this title or this meta place is inappropriate, but I'm unaware of a better place to post this.

Today I had an unpleasant day at math.stackexchange.

For starters, I got IMHO undeserved downvotes.
When I assumed that those are the people suggesting to change things and commented, I was wrong. Nobody knows who downvoted and they did not comment.
That is not against the rules, but I did not like it.

Also I met many bugs. I just got white pages with gibberish and insults on it, without even a menu bar or anything that shows this is mathexchange.

Hacks, viruses, I dunno. But I got a "whoops something went wrong" page from math.stackexchange window after it often.

Also, I was blocked a few times because the site was "overcrowded" and had to log in again and search again where I was.

Also, I don't get the idea that I'm banned, or was that an error too?
I mean, I did not remove questions or answers, I have a positive reputation and even medals (or badges).

So apparently people appreciate what I post.
That does not make sense to me.

I'm considering closing my account while I should not be.

I'm not a happy user.

And I don't know where to find a good alternative for stackexchange, but that seems insufficient to stay.

I'm considering giving up math on the net.

I feel controlled and insulted. Although I got a positive reputation, that's really air to me if I'm banned, not taken seriously or insulted.

I'm not in the mood to cheat to get a lot of reputation and I'm not willing to risk the effort to spends years building reputation to just risk getting banned later.

I have a life too.

An unhappy user.