Marc certainly comes across as deeply immature. Personally, if I were rab, I'd consider blocking him because he just seems to annoy people, and appears to revel in doing so.
Chalky can speak for herself, but my best guess is that it was a compliment. :-)
FWIW, I think that blocking should only be carried out in extreme circumstances, which are currently not met. Dan and Dunx can also speak for themselves, but I think their general view, suceessfully implemented on their servers, is that we should sort these things out among ourselves if at all possible.