As there are more topics like this, i think this topic should be locked becasue this topic is already discussed . But if there are alternatinve way about this , than we can continue our discussions.
Thank you but it is not what I want. I meant I want to screen users with their usernames (nickname) not with their display names. I want to find scammers who make fake display names of admins in Telegram groups.
I don't know any shorcut tricks to findout. But, if i want to verify a user who is really an admin or not. I just copy the username (i mean suspects/scammers who try to make admin profile) and search message by using "Search By Username" option in the main group. If that id is a scammer , we won't find any kind of message in the main chat group. BTW, we can find out that the profile is real or not. (Sometimes scammer use symbols or other non-letters which is automatically removed by telegram that's why the admin's username and scammer's username are match or looks like similar.)