I'd also add that there's at least a couple of suddenly-prolific "green" commenters here today... which is interesting (but definitely not conclusive) as to what exactly is going on.
Personally, I'd go from the assumption that suddenly-prolific "green" commenters have some special interest in the topic. These days -- since HN has become mainstream -- I'd lean towards astroturfing or some other monetary interest.
Personally, I'd go from the assumption that suddenly-prolific "green" commenters have some special interest in the topic. These days -- since HN has become mainstream -- I'd lean towards astroturfing or some other monetary interest.