@darius This is a good way to look at it! ^^
I think it's harder for a lot of folks who have included their Twitter handle in all the media/content they've created over the past few years. So disengaging from an old username isn't as simple for them. :\
@Rheall I object to "isn't as simple for them" because I also did this for ten years of stuff I've made. Totally understand that it's hard though and not for everyone!