DA already has that specs part on the right side of the artists' comment...that said, I think that should be customizable, so as not show the ridiculous nonsense about what kind of camera took the picture.
I like to see it sometimes, especially if there's an unusual effect or medium used in the piece. It's always interesting to see the time taken on something but I know how hard it is to keep track of time when you're in the art groove.
I picked other because it kind of depends on the purpose for which I am looking at something. If I am buying, I like to know the time taken, the size, and something about the materials, because it helps give me an idea of what's a fair offer. I hate lowballing an artist, but by the same token I want a good deal.
If I'm intrigued by the results of a technique, I'm interested in the things that will allow me to reproduce it and expand upon it. Size is not so important in this case, nor is time. Tools, technique, and materials are important here.
I like media and size information - size particularly because there's a difference between "OK, some standard roughly letter size pic" and "WTF, they put all those details into TRADING CARD SIZE?!!"
For digital art, software used and maybe pixel dimensions and MAYBE what kind of brush they've been using (if it's been one or two kinds only, rather than a long list).
It irritates me when people are too lazy/arrogant to put nothing but "..." in their image descriptions, because on any drawing/painting you can mention that kind of info, if you can't think of anything to say, or want to leave interpretation to the viewer.
Now that you asked, and we have replied ... don't forget you asked (( Mwahahahaha )) ... Honestly we all love that sort of stuff, but we won't come choke you or ignore you if in the midst of posting you miss a few (we love the art more, but we want to do better art too).
I am now learning PS which I thought would be so easy ...OMGoodness, there is A LOT in that program. Learning Painter is harder ... every time I try the water color brushes they just mesmerize me and I lose track of what I was trying to do ... OHhohoho Amazing, that they can do that .. really those are some brushes!!