Got plenty of bandwidth, sites block you regardless, you get captchas regardless. Plus, IP addresses rotate once a day so you're just as likely to get someone else's bad reputation anyway.
To sue them you'd have to show some actual, concrete harm. For example you contact a site that is blocking you and they tell you it's due to a certain request and you trace that request to the proxy.
This is entirely specific to the user’s ISP, my “dynamic” IP goes months without changing.
And I would be miserable if I were subjected to the volume of captchas and blocks on my regular internet connection that I see on the occasion I use Tor.
To sue them you'd have to show some actual, concrete harm. For example you contact a site that is blocking you and they tell you it's due to a certain request and you trace that request to the proxy.