This is an continuation of my last post, specifically a comment from @rufus@discuss.tchncs.de:
It will never get recommended. It’s bad for the network and bad for your privacy.
Excluding that doing so is bad for the network, why it is “private” using VPN but not Tor, inferring from common consensus. The main point in the blog post is a protocol level problem:
apparently in some cases uTorrent, BitSpirit, and libTorrent simply write your IP address directly into the information they send to the tracker and/or to other peers
Tor and VPN are both transports what wrap other traffic within. If that statement is true, no transport can save the information leaking nature of the BT protocol itself.
Yes. That’s how I see the problem.
I understand and agree.
In the context of this question, I don’t really cares if the IP changes or if UDP supported or the network degraded. I’m asking a more fundamental one: when the data in the BT protocol contains sensitive information, then why VPN/I2P is acceptable but Tor (or other transport) are not? That sensitive info is still being transmitted. If that Tor blog is true, then no matter what we use, it is still bad for privacy.