Also check out these related sites:
Regarding Pick and David: Mark's and John's accounts are tagged, not David's. As far as I know, David is tagable. Pick left out David on purpose? This is weird.
I don' think Pick is even the one managing the account and posting. His wife is, isn't she ?Frankling, drawing conclusions for a lack of tagging (but David is quoted anyway) is stretching it very far...