Nickname limited in number of characters

[krosk]

The official client can display nicknames with more than 12 characters, but you will not be able to manually write (that is, renaming through client) more than 12 chars.

While there has been no word that the client/server detect tampering of responses through checking the length of nicknames, this is a potential giveaway. You may want to issue a warning to users.

[malopetrov]

As of my understanding app doesn't change the nicknames. They are only displayed customized. No server comunication here.

[igoticecream]

I could add an option to truncate always 12 characters if it exceeds

[alucas]

If they start to check every details like this, their code will grow messy and hard to maintain. Idem for this module.

If they start doing that, It will probably be easier to intercept the anti-tempering function/message.