i'm talking about the combination of one picture on different forums AND usernames. i could also setup a site where u can register once with one name and use this on every forum which uses my system.
but i also dont like facebook and google, which links everything everywhere, but dont care about personal information of their users or laws.
a realistic view from the users side IS that security risk where someone gets my account however, he could ruin my name www, and use my account for spamming on multiple sites or whatever. this could be the admin itself, maybe if his database is unsecure or he is forced from someone to share the data. this dont need to be scriptkiddies or destructive people.
maybe outsourcing disk space and load times is nice for websites, and maybe its a good idea to handle multiple sites with one account, but i think this has to be an option. who doesn't want this, should also have the possibility to use standard functions like an avatar on a discussion board.
but now i give up, and dont use an avatar here. <img src="smileys/smiley1.gif" border="0" align="middle" /> thanks for your opinions.