Could you explain more details how do you guys handle the bill if this service offering for free?
Also about this point:
"the main point is that links never get deleted because our smart script detects reported/deleted links and fix them in a matter of seconds, this means your links can stay alive forever."
In this case I'm very sure the solution for this case is to reupload the file, so it's mean when user video get deleted by DMCA takedown, your service will generate clone files right ? then who is the owner of the cloned files ?
After reading your explaination I don't think your service is "Anti DMCA" because the member files still can be deleted due to DMCA takedown and what your service do is generate clone files which is mean all videos that have been cloned are not ours anymore and what remains for us is to host your video files on our website?
Well except your system will automated upload new files to member account the story might be different, but I'm sure you need quality server with high price to doing this task and "free" will be not mean real free in this case.