1. He is already banned because of duplicate id. You could have checked his user tag and avoided replying him.
2. PM is disabled for newbies as they end up misusing it so he can't and your reply might confuse newbies further.
3. We suggest anyone to post Talk to Team thread if having any queries. If still they PM us, we give them link to that forum, instead of solving their queries via PM. Only thread starter and all team members can see it. It makes easy for us to track down user queries and if a specific team member isn't available, others will help him out.
4. We aren't busy but stupid messages get ignored intentionally as we don't like replying them.
5. Do not reply if you don't know something. Other members who know better than you would reply anyways.
6. Read whole thread till last post before replying so such unpleasant mistakes won't happen like now!