Hi.
Sonic Retro, Sega Retro, Retro CDN and NEC Retro are all actually my sites, so thanks for the warm feelings you clearly have. Also, I'm a woman.
The only reason lower quality magazines scans are on the site is actually due to a HTTP upload limit; obviously, as the owner I can get around that, and I'm looking at ways to make multi-part transfers that alleviate that issue, but until then, there's a hard 100MB limit. I understand people choose to downsample to get around that, and while unfortunate, it's just the reality of the situation.
I honestly had meant to come back and basically say "hey, you're free to clean up and edit these as you will as I upload them" but got sidetracked working on some discrete logic arcade game documentation that, ironically, came up in one of the issues I was cross-referencing. So yes, you are free to clean up, edit and redistribute whatever I upload.