This should go without saying, but when connecting with another member through Parsec or any another streaming software please have the respect to not vandalize or snoop through their files without permission. This is a potentially ground breaking piece of software for RA2, and the last thing anyone wants is for it to be ruined by another superduperultramega.py.
Only host with members you trust not to overextend their welcome, and make sure to report any suspicious behavior to a member of staff. On Parsec you can disable all remote control with a hotkey (Ctrl+F2) until you are ready to fight.
Foul play over any streaming service will more than likely result in an indefinite/permanent ban.