The fatal flaw with the current business model.

Of course, hardly anyone buys the Guild BBS icons because they are what, 16x16 pixels? They are largely unnoticed, hardly influential, and certainly not worth the price for which they are offered. Maybe if it was a permanent thing or something you could buy for the whole guild, but not individually for 90 days.

I'm pretty sure people would buy aesthetic changes to their Evolution Systems (maybe not for the BGM since they can just substitute their own music with windows media player).
I'm also pretty sure there are people who would pay for the privilege of being able to spam this in the new chat function.

I've only seen people afk for Likeability in the new messenger. And while there may be people who pay for it, it doesn't mean it's sustainable. Plenty of people I know, and probably the majority of players, would opt out of buying the little emote things, or whatever you'd want to call them.