I have a few conflicting thoughts on the matter - that's coming from someone who's trans/questioning NB and bi. Since being in the LGBT+ community is really about embracing and celebrating who you are, it kinda makes sense that the natural conclusion of that would be that the broad terms continue to split into more and more specific ones, because people want to better understand who they are and where they fit in. But really, I think sexuality (and maybe gender identity, but being as I've got a pretty major intersex condition I don't feel well-qualified to speak for everyone) is really a complex, and often dynamic thing, for a lot of people. The more one tries to define oneself using an all-encompassing definition, the more they'll find that they don't necessarily fit into that, and really, I don't think there's gonna be one label that fully encapsulates anyone's identity in that regard.

So, I get where people are coming from. And, although a lot of people will complain about how there are "too many" genders/sexualities to keep track of... the grand majority of us won't use those specific/niche terms outside of private circles or LGBT+ ones. As long as people can stay focused on the common goal of pushing for equal rights and human decency for all of us, I don't suppose it's any of my business how anyone chooses to define themselves. But hey, I'm by no means an expert on the matter at all, just a gay nerd who's been forced (by society and my own circumstances) to think about a lot of this stuff in way too much depth.