1. Not at the moment, no. I'm considering changing that rule for next AC, but either way, it wouldn't count for newbies just entering game.

2. As long as they are different top levels that should be fine, even if they are all from the same big log.

3. They can be used for bonuses like "doing your job" or "NPCing" but they can't be used for any of the Spam, Regular, or Long tag bonuses.

4. Yes! Just as long as no actual tags are counted twice it doesn't matter if it's from an old thread.

5. Yes! There are a few days of overlap at the end of each month, and you can use any activity from that period for whichever AC you prefer.