HN can suck you in, especially if you're bored at work.

I have never been so offended by something I 100% agree with.

or they are new here and have those places as places they normally read?

They're definitely reading way too much into it and should probably take a good, hard look at themselves.

20 posts in the past 48 hours seems like a bit much.

maybe but I sometimes go through times when I do a lot of posts because I'm going through my bookmarks for the day - probably 5 or 6 though but could be I'm not that prodigious.

I hope this isn't a weird thing to say but I always really enjoy the links you post. Your bookmarks must be an interesting place!

Thanks, it's not weird, I guess that's the point of HN.