https://www.cryptocoinsnews.com/luxembourg-researchers-unmask-bitcoin-users/
It seems safe to assume Tor is broken now.
erm did I miss something?
I second this question.
The article merely explains how the paper explains how bitcoin nodes can be pushed from tor and forced to connect through clearnet by triggering DOS protection against the tor gateway IPs.
Doesn't imply tor is broken at all.
btw: there's still a simple way to hide your IP when making a transaction: Hide in the mass of people using the same electrum (or obelisk, or ...) server. Yes, you have to trust the server operator to not store your IP or to not give it out. If you can't bring yourself to do that, just run your own server and get other to use it.
Or just create the transaction and sign it and create the raw transaction. Then using a proxy or VPN broadcast it with blockchain.info web interface (you could even go to a free public wifi 200 miles away if you're paranoid)
https://blockchain.info/pushtx
Shit sounds pretty easy to me...