Sorry about that. I know it is pretty bad how I uploaded all the bsp files without readme/no original zips. I deleted your maps now and uploaded the proper zip files. That is something I want to do with all the maps there. I just haven't found the time yet.
About the wads:
What do you think of this as an example?
http://www.quaddicted.com/wads/knave/index.htm
Creating that just took a few minutes (Export from Wally and then creating a Gallery via Brennig's, some html cleaning and file shrinking afterwards).
I could imagine just a long list like:
<downloadlink>knave.wad</downloadlink>, size: 123kb, textures: 1234, style: evil, <gallerylink>show me what i get</gallerylink><linebreak>
next wad
That would satisfy both "leech people" and "searching people". Problem/stupid is that the preview page is only about half the size of the wad itself and thus doesn't really help. One could just download the was and then browse it in Wally for example. Some selection (maybe 10 textures per wad) would be better maybe. What do you think?
Oh! And how about permission from the wad authors? Kell just pointed out a quite good point. I can't host something when the 'owner' doesn't want it that way (which I can absolutely understand).