Unstable in loading times? You mean it sometimes takes a long time to load and sometimes it doesn’t?
If so, please file a bug report in github.
Yeah, that’s expected to happen, both because it’s an experimental feature and the network is reeeally small so there’s not a lot of bandwith available yet. The more users it gets, the more nodes will be available to build circuits.
Also have in mind that it will never be as fast as normal downloading. We will do our best to find ways to get as close as possible but there’s intrinsic limitations to the system.
I assume you are referring to the collected .torrent files. If you live in a country where it’s illegal to even have a file on disk that contains references to a file that’s actually illegal, you shouldn’t use Tribler nor any piece of software that indexes metadata autonomously.
What you have to be careful with is with enabling the exit node option when you get asked for it the first time you start Tribler. Even with the popup and the cancel button focused by default, people keep getting in trouble because they don’t read what they click accept on. The next Tribler release doesn’t show this dialog anymore, if you want to become an exit node, you will have to go to the settings window and enable it there.
Cheers!