Yes, I would use this a lot! That's an incredibly exciting idea and something that I think is desperately needed for the fediverse. I hate to say it, but I think this is something that other (currently more popular) platforms still have an advantage over.
As someone that travels for work, it's not always easy for me to learn where and what my resources are. I could see a platform like this being able to help out immensely.
Buying/selling/donating groups are something that immediately comes to mind too.