just trying to spitball reasons-

so we can access our saved content easily? so we can save easily?

i guess my desire would be like, i want my own systems that i trust to have my content, that i store into. then additional systems can push/propogate that back into youtube or what not, if i want that.

and i'd want my systems to be able to augment some of the experiences i'm having elsewhere, use a 3rd party tool to make favorites of a site, any site, available.

there is some negative here, this is kind of anti-social. i do like looking at people's favorites! if they off-board them into their own environments, if the practice is that the first system you store to is yours, the online social world suffers. we have no means right now to create links that would be anywhere as effective as what youtube internally can generate, the data is too far apart in this system, rather by design. yet surely some will seek to harvest that distributed data, but will need big tools, & how do we end up with not just the rich & powerful holding our data again?

one additional though- perhaps just a buffer system, so one can fav stuff while offline, then log in & dump that buffer into youtube.