I always do it — just a polite line saying thanks for getting back to me, still looking forward to next issue or whatever. It’s almost a superstition – I have to do it for each and every rejection. Not sure why. Is it some compulsion to demonstrate (to them? to myself?) that I’m not some wacked-out loser who can’t take rejection or criticism? There was a time when I wasn’t sure that I wasn’t that sort of wacked-out loser, but I think it has passed. Why, then?
I just realize that I thought everyone did this, and am only focusing on it now because I recently sent out several rejection emails as a first-time co-editor and didn’t get any responses. Not that I thought any were due (and feeling, now I think about it, rather grateful than not that no fiery rejections of the rejections were forthcoming), but just wondering.