This is a pretty bizarre question to me personally.
First of all, we don't have to do anything. If you mean you were wondering if people will lynch you for using emojis, no clue. Try it and find out.
Second of all, the whole "build my personality to fit in" is exactly backwards. The whole point of the fediverse, instances, etc is that you find a community to fit you, not the other way around.
Third of all, this isn't Reddit with tens of thousands of comments making anything more than a "yes" or "no" irrelevant. People actually have the time and space to consider things and answer them more fully here when there's less spam.
Finally, the whole idea of a "mob policy" sounds concerning.