nice
I wouldn't mind to find little downloadable mp3 or ogg sketches of what people do with the loops, like that, I can quickly enjoy on the phone, which is easier than getting all collections and trying the suggested combinations, for me.
for places where it's all coming together: one could do what the defunct opensourcemusicians podcast did, create one details page just to link the other ones (
https://archive.org/details/osmpodcast), but what would be really nice, if the LMC threads could be moved from Producers Area into their own (sub-) topic by linuxmusicians staff, which would also make it possible to set a sticky post on top where all challenges could be summarized and linked. Just brainstorming, this is evidently stimulating me

Or hey, why not bandcamp? they're a commercial page, but while they are taking a share from paid downloads, they are not pushing them, and are allowing freely downloadable material in the same conditions, which include an artist page with customization options, and the facility of structuring uploads into 'albums'. I don't remember if there are any limitations regarding links.
as for exporting: if you got all tracks on an 8 bars loop, it should be easy: mute none, deactivate what you don't want, go file - export - export stems, pick loop as the time range, in channels pick 'all channels' and probably tick 'with processing', in main tab choose format, optionally tweak naming options, export, done, your export folder in the project folder should now be populated. IME bulk renaming is easier than fiddling with the ardour options, likewise, external tag editors (I used clementine's) seemed more reliable than ardour's metadata functionality