Almost kinda makes me wonder... if bisexuals drive LGB-related conversations online, just because they are way more likely to be talking about their sexual orientation online than someone who is gay?

Hmm it's possible. Young, closeted people would be more likely to go online and chat and share memes about their sexuality, as opposed to someone secure in their identity, and/or someone who's settled down, unless they have another reason to chat about sexuality-related topics such as the one we have in this sub. Yeah, I think you have something there.

I just think there is a sizeable proportion of people who self-describe as bisexual who may just be doing so to virtue signal.

It's possible, definitely when it comes to celebrities. However, I think that population is much smaller than actual closeted bisexuals. Anecdotally, most bi people I know are closeted and no one I know just uses it to virtue signal (these are close friends so I know their habits lol). I do think a lot of celebrities use "being bi" to virtue signal, though the fact that they're using it to virtue signal doesn't mean they can't be bi.

There is nothing inherently bad, selfish or negative about bisexual people, the same as any other demographic, that is causing them to fall for the transgender movement's propaganda, though it is true that bisexuals seem to believe the transgender movement's propaganda more.

Definitely not. I think they're just more insecure and well, the myths (sexuality is fluid, genitals don't matter, trans woman are women because I would fuck them) ring true to them. There's nothing there that a bisexual person could discount with their own experiences. They have to listen to monosexuals and understand that their experience is not the default, which requires empathy, which people suck at in general.

Anyways great analysis.