[Paul M]

Well technically that is neither a post or a signature - it's because the announcement postbit displays a line from your member profile and Joe has information in his profile saying who he is, and that he is available for custom work.

Just to clear up any misunderstandings - all members are permitted to let others know they do custom work (or not) in their signature, and members are also allowed simple links in their signatures - what isn't allowed is 'promotional language'. The staff will decide if language is promotional or not (quoting prices is an example of something not allowed).

The message is mainly prompted by the recent spate of members advertising their services in the disguise of replying to questions (mainly hosting services).

Edit: Joe already spotted the postbit problem.