[Incendium]

That is a little tricky depending on how you have your forums and dkp set up. My guild's forums are set up in a way that you are required to register with your main character's name and that only guild members are allowed registration on the forums. I can easily arrange it so that the plugin simply searches the DKP database for a character with the same name as the forums username.

It is still very possible with separate forums and dkp names, however it would require an extra field on the member table for the character name in conjunction with the forums username and would also need a check to make sure that character name exists on the dkp table.

The rest can be easily achieved with a linked query.