I am novice to Tor, but before using it I have gone through lot of websites. An article explained that Tor is dangerous the following reason:
- Consider an IP 18.104.22.168 which was assigned by Tor to user X and he used it for an illegal activity then he closes his Tor circuit after accomplishing it,
- Later an innocent Y comes in and is assigned the same IP 22.214.171.124 by Tor,
- If user X is a government suspect and the IP he got at the time of doing illegal activity (126.96.36.199) was targeted by the NSA, what would happen to Y when Y retains that IP for a day? Could he be arrested by the NSA because of having 188.8.131.52 though he claim himself as innocent?
This lead the article's author to conclude that Tor is dangerous.