I am here, too. Just was off for a week or so.
I guess, when it is hot, you do other things than knitting (at least I have heard people do so) and then don't bother with the forum so much. Also there are less people at home, more people out in the garden / at the lake / the beach / the neigbors / the BBQ /whatever
Don't worry - come fall come trafic :D
Well, I will remain here (unless I go on vacation) and keep posting away.