Yes. But I mostly only talk to good ones online.
To me, the only "bad" ones are just boring or have bad taste in western things.
It's very boring to me when Thai women like K-Pop, One Direction, Justin Bieber etc. That's like stuff that I expect 12 year olds to like.
Or when they all like the same farang movies. Avengers, etc. boring.
I never meet any pervert Thai women online. Although I've met some from the Philippines.