I think it would be cool to see more user-generated custom emojis, but it also could become a huge mess if anyone could upload as many as they want at any time... What if Plus! subscribers could submit one for approval every now and then, e.g. monthly or yearly...?
I think it would be cute if it was like, only Plus! members submit their nominations to the be the new emoji of the month. Staff then once a month pick one winning new emoji from all the Plus submissions; maybe to be this month's Plus Emoji (like how the host emojis are Plus! only).
Or maybe anyone can submit nominations for the new emoji of the month but only Plus! members get to vote on the new emoji.
Just trying to think of completely unimportant things that socially pressure people into spending money.