Some personal thoughts on piracy (warning - long post)

[Yuhaney]

Abandonware is legal as far as I know.
Site you mentioned uses Google AdSense, so, that most likely means it's legal, since Google would ban such users / site owners and remove the ads, so that it's not possible to become part of the AdSense program in the future if they would share pirated stuff or share links to warez sites, etc. .