WebArena looks interesting, though the main topic of autonomous agents is not my expertise at all. However, I am wondering.. this submission is now 10 hours ol

WebArena looks interesting, though the main topic of autonomous agents is not my expertise at all. However, I am wondering.. this submission is now 10 hours old, still middle of the front page on HN, and only collected 39 points and 4 comments in that time. I wonder a) what keeps this so long on the front page? and b) why so few comments for what seems like a very innovative approach?