Found the Wasabi "attack":

"to be precise: changes the # of inputs to 2 (yep), drops the coinjoin time from 45 min to 5 min, and raises the fee % to milk you" [1]

Doesn't sound like much of an attack to me but a malicious coordinator playing with parameters in a legal range that are free to control and clients just accepting whatever the coordinator says.

[1] https://bitcointalk.org/index.php?topic=5499439.0#msg64308723 

 Growing pains of an open market 😘 

 Short:
Only way out is being a smarty pants 😂

Long:
Understand what you do. Applied knowledge is power. 

 Well, I’d still call it somewhat of an attack. It’s crazy expensive compared to “the rest of the market” in an attempt to siphon sats from people. The intention is definitely hostile 🤷‍♂️