UK: gays and Aids fascinated men asked to be alert as monokeypox caases rises to 7 in UK

UncleDilf is a based poaster.

I read on Many YouTube comments this "based" word. What dies it mean? Is it a trend? Guess I am getting old

It's a 4Chanism I think, it means someone who doesn't care what other people think and speaks their mind without fear of upsetting or offending anyone.