I2P is a darknet similar to Tor in some ways, but it is perfectly legal and safe to use depending on what you’re doing on it, of course.''
TOR is completely legal and safe to use depending on what you are doing as well. Let's not demonize the service due to a few bad actors.
It's not really a fiasco at all. OP seems to be blowing it way out of proportion. For the vast majority of users it's not a big deal at all. They are disallowing port forwarding due to how many letters/threats they've gotten from their datacenters and law enforcement.