You got a "red tag" for merit begging via PM... it even says so in the Trust comment left by OgNasty:

I don't see how anyone can think this is for "spamming".

   Positive - You trust this person or had a successful trade.
   Neutral - Comments. Your rating will not affect this person's trust score. (THIS IS WHAT LAUDA SUPPOSED TO DO)
   Negative - You were scammed or you strongly believe that this person is a scammer.

The first number is the user's trust score calculated based on how consistently they've received positive feedback. Probably no one will get a score above 0 until the system has been around for at least a month. The second number is the number of reported scams. The third number increases with the number of positive reports, as does the fourth number in parenthesis, though the fourth number is more resistant to abuse. This text changes color depending on the score. Users with a negative score (attainable through scamming) get a red warning attached to their posts.