In our case, Person A is well-meaning and not a troll. Probably 90% of our deletions by mods are because the post does not add value and mods are trying to keep the noise down. For example, if Person A posts “Thanks Bob, I agree”, the mods delete the post and send Person A a canned PM on how a “like” or PM would be more appropriate.
As @pfaffman points out, sending more emails on deletion would add to the very noise they’re trying to reduce. So maybe this was a dumb idea and we should leverage existing tools, like wait time and post length. Are there other existing tools we should consider?