I've been using stream on multisite installs for a while now, specially to be able to track what editors/customers are doing. It's organized and clean views are a good way of quickly getting to know what's been going one in each site of the network.
however, since the last update I can't install plugins as network admin, I keep getting the message that I must signup to stream premium to be able to install extensions.
I would understand such behaviour if we were talking about installing extensions to stream, but it blocks me from installing regular wordpress extensions in wordpress.
Hopefully a bug.
Anyway, manually removed stream and all it's db tables for now.