Genomic data size has reached volumes to the point, some NCBI has stopped taking certain types of data from Investigators. Other openData projects are also running into barriers..

I know there are tonnes of open source Bittorrent projects: <https://github.com/search?o=desc&q=topic%3Abittorrent&s=stars&type=Repositories>

What I am wondering is if there is any upperlimit on the file storage that bittorent can handle efficiently?

I know that there are issues regarding seeding, i.e. a lot of users will leech files and stop seeding. Which is probably a major roadblock to adoption of this technology. Has this issue been solved? Is there a way to enforce a certain ratio of upload to download?

Are there any other technologies other than bittorrent that I should look into?