Unrelated, but absence of evidence is not evidence of absence.
So, I'm not allowed to ask you for proof of your statement? And if its unrelated, then why did you post it? Its unrelated. Also, you're saying you have an absence of evidence, ergo you have no evidence. Having no evidence does not qualify as evidence.
Removing an identifier that is used. (1/100 = matters, "isn't really used" != unused). This contradicts your other statements:
Just because an identifier exists doesn't mean it is used.
BidRequest.imp[i].tagid
exists, but advertisers don't use it.
I think you are confusing having an option with something being mandatory.
And Tor nodes are not the same thing as VPN multi-hop. If you think that they are, wow! VPN multi-hop is you connecting to a provider's server that connects to another one of the provider's server then out. It's all the provider's network.
And again, if you connected your Firefox browser to Tor, we could still track you. You'd get cookied or localStorage() tracked. When you disconnect from Tor, that stuff is still present in your browser. Almost like the number of hops you take or the IP address used doesn't seem to really matter, huh?
EDIT: I just realized you think that Tor is built using multi-hop VPN. Its a real life Dunning-Kruger effect! I've never encountered this. You are going to do something really stupid and end up in prison.
Again, post your evidence or didn't happen. Literally everything after that meaningless without that. The discussion is over because you can't provide that as you are wrong. End.