Reddit was quite unhappy with services that mirrored their data and made it publicly available. So much so they updated TOS for the API, and forced services to delete data and shutter.
Reddit's become low quality now anyway. All the good old high quality information that people search Reddit for is in the dumps - they're not generating much more of it.
They certainly don't want to have other Big Tech companies exploring "their" data, but I'd argue they would only after someone who had a clear commercial interest. They are not going to chase a few dozen people on /r/DataHoarder running an Archive Warrior.