Linking Forums + NI ingame

[Jalau]

Hey there, 
Some time ago I got the idea to link the forums with NI ingame. What I'm meaning by this is the following:
When having a forum account You can link it with Your ingame account via typing name and PW to be shown one recieved a PM in the ingame chat to speed up communication while doing trades or whatever. An other use I thought of was to replace IRC, which could work by showing admins/devs the subject of a PM ingame, eg "AFK'er on Normal_EU_X", so they don't have to sit on IRC all day long (if this is possible);
What do You guys think about this?

Could be useful but also a bit spammy maybe