got a warning for my username

I got a warning from Lichess that my username is offensive and I should close my account in 48 hours.
A historic account for me as I reached 2300+ in bullet, something which seemed impossible a few years ago.
Obviously some people reported it but shouldn't Lichess team be able to distinguish right and wrong reporting?
No curse, no name calling, no targetting specific group. Nothing.
Do you think my username is offensive?
Would Gay_Pride be preferable? I am asking cause I have seen many of those usernames in here.

Does any of Lichess admin have the balls to explain?

No idea why your account...
It doesn't even convey anything.

Well if they are doing this then everything with pride must also be banned. The rules have to be applied evenly or not at all.

Personally see nothing wrong with your name.

Guidelines say:
In general, a username chosen with the intent of generating negative emotional reactions, is bad. This includes, but is not limited to:
Usernames with offensive/sensitive topics, e.g. race, gender, sexuality, politics
github.com/lichess-org/lila/wiki/Username-policy

I don't find your username neither Gay_Pride offensive. But making sexuality your personality is weird in the first place and broadcasting it on a forum with kids is inappropriate. Your username does break guidelines and so do the potential others you mentioned.

You can try using lichess.org/appeal.

Try and appeal the decision here:
lichess.org/appeal

The fact that your account is more than 2 years old, and you use this site only play chess, and not writing in the forums.
Then, if a Lichess Mod have actually send you a warning just now, ... I mean it's been over two years? Giving the time period, and the amount of games you have, it does seem kind of overzealous.

But honestly I don't like pride in any shape or form... I personally preferred it, if people would be more humble.