Glad to see people working on important multisite things, and this is Buddypress compatible! I often feel BP and MS is the forgotten relative most wished was not.

I have had some similar MS / BP related issues over the years. For a while media uploaded by one BP member would be viewable by others members if they had created a MS blog aka site.

Luckily the author of the plugin that became 'press permit core' offered some code that restricted media uploaded by one member not being viewable by others in the MS setup - not sure if that's still an issue with that install or if something has changed over the years to make it moot code.

Something that bothers me as a BP admin, when I login, the wordpress dashboard shows recent media uploaded and it often includes images I am 100% sure members of the install marked as private, and I really have no business seeing the images, I know that's really an issue with RtMedia, but I've grown weary of their pay to add features with licensing expiring after a year, and I keep hoping there will be an RtMedia to MediaPress exporter / converter one day.

Of course I am not sure if the same permissions issue is baked into MediaPress or not, even though I place more faith / hope into it.

Another weird / similar BP / MS issue; with a multi-site with Bduddypress running, I found at in a bad way, that when a member comments on another member's sub-blog aka "site" - the member's email addy is displayed in the message emailed about comment moderation. Luckily a similar issue from D Sader(?) was out there and I was able to get a message to him and he coddled something together to block that for a while. Not sure if that is still a weird thing or of that code could be stripped out at this point.

It's certainly unexpected privacy issues that make sense from the dev standpoint, but are a major loss of trust with users when these kinds of things pop up unexpectedly.

Again, love to see any work that furthers progress with media related to MS and BP - big props!