Just found this topic... SMWDB / smw.servegame is my pet project, shared in atonement for indirect mismanagement of content being preserved elsewhere. I have a lot of hacks, but know that I also miss as many. My site would be far more spotty without the piles of random downloads graciously contributed by members here and there. My collecting habits are more hands-off than they could be, as I no longer practice the mass leeching habits that would sometimes get me blocked from various sites.
At the beginning of this year, I hooked into a companion project that was trying to preserve a copy of every hack submitted for inclusion in SMWC, as we know most don't make the cut despite the author's good intentions. However, that project has been effectively dead since the recent denial of service attack that necessitates Cloudflare protection.
When the well runs dry, I eventually go on a pile hunt on the outer nets, but independent collections are extremely rare and more often outdated forms of the very sets I had already contributed to. I've often considered posting a request topic similar to this here, but usually the response includes a batch of baked ROMz instead of the neutral diffs/patches they would have been best preserved as. I'm aware of the legal ramifications of soliciting certain kinds of data in a public forum, especially one with rules forbidding it.
Off-site and in private, you can do whatever you want with games you've purchased legitimately within the law of your country (which a corporation should not dictate), but for any patches to them to be circulated safely, they'd need them to not function by themselves (i.e. be a playable game), and the end user, independently having their own legit copy and means to apply the patch, would need to decide to do so without your input.
I've experienced the wrath of corporate watchdogs nearly first-hand more than once. They don't simply order deletion of content; they can get a court order to commandeer a site's domain name redirecting visitors to their own network and "educate" them of wrongdoings and damages caused to them. I do not want SMWC to turn into another rom site to be given that pressure, and thankfully they have the sense to dropkick every detected ROM out of the ring before they pile up here.
You can visit my site as I am also without roms (I roll my own patches), but please contact me before attempting to leech files by the thousands, as there are better ways for you to collect.