This is now a important function, of course that is only my opinion.
The use of Cafe' account abuse is starting to grow, note that this is not real Cafe' Account Owners doing this abuse of the "unlimited Steam ID's"... it is accounts sold by cheat sites.
Ok so these are more popular now, noticing them more and more. Also I am seeing more and more servers blocking accounts via the range of id's. So... if lots more are blocking, where do they go? The servers that have no blocking of these account ranges.
It may reach a point where a server has to have this ability or become a favourite for raging.
Here is a Windows plug-in ...
http://lodle.net/archives/7
There is none for Linux.
Anyone want to make a plugin for it
in case it does get out of hand and this does snowball into a big problem?
I have only confirmed users in STEAM_0:0:7770000 range, raging and boasting they can't be banned. If you operate a server and you have experienced this, you know what its like...if not, your turn will come soon... IP bans are useless btw.
The above plugin seems to ban (X being any number to ban) STEAM_X:X:77XXXXX.
So a plugin that has a config file to play with to set the range ... with a IP whitelist for real Cafe Account Owners so they are not blocked.
Of course VALVe may step in and fix this... up until now they publicly have not cared... why would they, it's a embarrassing security problem with their commercial product