I appreciate the initiative, but I see so many problems with this:
1. People might hesitate to give their payment to shady websites (as you want to be a patreon alternative)
2. People might hesitate to back something that has been taken over by new people, thus having no proof of quality regarding what to expect from now on
3. Developers might hesitate to sell their projects even if they abandon it as they might want return to it
4. If it gets abandoned because the devs did not bother continuing, there is a chance (with new devs) that they won't bother selling it either.
5. If it gets abandoned because the devs have no idea what to do with it and you have one, it might be better to just offer help
6. If the project is already very big, the devs might ask for a rather high amount what only in very rare cases would others be willing to pay (nobody likes to pay a lot for something that was thrown out)
7. If the project is still in early stages, then it might make more sense to create your own version of it rather than taking over the existing - you won't be able to 100% match it anyway.
All that said, there would be probably some cases where this would actually be helpful, but that would be so rare that it would not make sense to create a website for that.
It would be better to just have a thread here (maybe under recruitments) where devs could offer their projects or request to take over abandoned projects (tagging the original creator). Lets see how that goes and then we can talk.
1: First of all, my idea is to make a website that displays sales information. The actual transaction will not be conducted on the website, but through other more credible online trading websites.
2: This is not a problem we need to consider. In fact, no developer can prove that the quality of his project is guaranteed. This website only needs to consider continuing the development of the project.
3.4.5.6: We don't need to consider those developers who don't want to sell their projects, we only need to consider those developers who want to sell their projects.
7: The website will not only support the overall sale of the project, but also the sale of the project's artistic resources, the sale of scripts, and so on.
In fact, the purpose of creating this website originally originated from my dissatisfaction with the patreon system, because a large number of developers cheated their supporters' money through patreon, but did not continue the real development activities. They often created a project and produced Very good character image, very tempting preliminary script, after attracting a large number of supporters to pay, it began to postpone the update indefinitely.
My initial idea was to create a website to solve this problem and prevent the money paid by the supporter from being obtained by the scam developer without any effect.
The item sale information is only an additional (extended) function.
English is not my native language, I used Google Translate