Have you thought about it ?

Enter your username here : dave Sorry the username is already taken , what about : punkykiddo1836 ?

Well they will have different social medis then

Media

I've found that on websites with a lot of usernames already taken up (twitter, yahoo, etc.) you can pick whatever you want and just put "ok" at the end of it and it's usually not taken. Now I've ruined that secret though lol

they will probably reset the usernames of 100 yead old accounts