Depends on the emoji. Unicode covers a lot. Some of it is frivolous and distracting, not that there's anything wrong with that, imo. Some of it, like ♠ or ⬅ or 哥哥 or the degree symbol ° is important for meaning in a certain context, and not frivolous at all. most are stripped out. it is left as an exercise for the reader to work out which ones aren't.