True, but the new system will only improve it a tiny bit. According to this post In most of the UI it will use your display name (or presumably your server nick

True, but the new system will only improve it a tiny bit. According to this post In most of the UI it will use your display name (or presumably your server nickname) which will be allowed to match other users. You can still have matching profile pics. To tell people apparat in the new system you need to click their profile and look at the username field, which only helps if the real user has a simpler username than the impersonator. Otherwise, like much like on Twitter, there is no good way for others to know which of @SeanHunter, @SeanHunterOfficial, @RealSeanHunter, is the real Sean Hunter and which ones are impersonators. The may all have identical display names, identical profile pictures, etc. So those anti impersonation systems will still be just as needed.