There are clients that can fill those out, but generally, for best access, try to keep them low, like maybe 2. If there are too many emojies in a username, I, for one, will just mute you for a while or scroll on by because it took 20 minutes to listen to your display name. Like I said, there are clients that filter those out too, but always good to keep in mind, what if someone were reading you Fedi over the phone. Would you want to listen to someone describe 5 emoji? @Stomata @FediTips