First Chipmixer then the other one (forgot the name) and now Sinbad is going down. I knew they weren't let that shit go. It is official now, you cannot stay anonymous on the internet or anywhere else.
Whirlwind, you mean.
Whirlwind was down but it was not seized. It is more like a scam exit with photographed seizure on their website.
Sadly, this will decrease the forum traffic except there are more other projects want to launch signature campaign.
It will not affect the forum too much. Before the Chipmixer seizure, there are some short-lasting mixer campaigns but no one can last like 6 months or longer. Chipmixer is the only campaign that lasts many years and after that seizure, we had many mixer campaigns and they have been lasting longer than usual.
So if they are all gone, I think the forum will be back to nearly normal status like days with ChipMixer, not much different.