Some thoughts that randomly appears in my mind:
1. I would never describe the whole clan as garbage (CC in this occasion), because when you have done it you labeled everyone in there and most of them I believe haven´t talked to you about this issue. So by doing that it just makes you the same as one you are arguing with.
2. As you said it´s the best to rename the map, maybe it should have been done earlier bit if the man dont wants it be named pp, dont name it.
3. I agree with QueeNie there that there´s no need to talk like that regardless what map looks like. Instead, give your opinion how he can better it.
4. Do not turn this into another flame fest, you all complain that clan sceene is falling appart, and how can it not when theres no help, seeing the both sides argument etc. regardin the thing that happend here. Noone is trying to be a bigger man here.
5. Peace nad respect.