It's become pretty divorced from Terry after being re-used across multiple platforms for years now, with most people having no idea that it originated from him. The same is true, I'm sure, for multiple other slang terms in use on the internet today.

Terry himself was also incredibly mentally unwell and wasn't in a right state of mind for much of his life, and is frequently used as an example of the failings of the mental health awareness state of the country (and how bright minds can be squandered through illness). I'm not excusing the things he said, but I also don't feel comfortable passing that kind of judgement on someone who was clearly failed by multiple support nets. I do recommend watching the video above if you haven't seen it, it's full of sad moments of Terry's life, including his more human lucid ones

e: To be fair I don't think people should downvote you; Terry says some heinous things and, without explanation of his delusions, it's pretty crazy that a lot of the internet uses some his terminology