When sending a private message you must send over 10 characters I find this very annoying my friend send me a pic i say cool send and forget about the limit so I just have to say cool sdhjakhsdajklfhsadjklf. I understand that its to stop someone from spamming your inbox but they could just as easily dhjfklasfjsakjlfhsd send, djsdkfl;ssj;adkla send and so on and so on. So if you don't want to get rid of the character limit expand the amount of messages you can hold go from 50 to 200.
Character Limit:
Pros:
can make sending messages less tedious and rid an annoyance
Cons:
can open a new door for trolls (its not even a very good troll)
Larger Inbox:
Pros:
can hold more messages
makes it harder to troll
Cons:
can lose messages