Considering Patrick's tendency for amassing huge amounts of karma (not a dis), even on older threads, I'd be surprised if that poses any issue whatsoever.
I'm just wondering if there's maybe an atypical gap between the time Patrick tends to post comments and the time those comments tend to soak up their comment, so that the endorsement delay could be an issue.
There will probably be a nonzero negative impact. Patrick and a couple of other users recently tag-team-assisted someone with a website problem in the middle of the night, and this new feature probably would have about killed that.
I still think it's a net win though.
A few of us with very broken sleep patterns can put a little more effort into checking comment threads.
