Ecomix.io is another mixer who recently decided to discontinue their project. The site is no longer hosted and gone.
https://ecomix.io/I doubt the reasons are the same as Bestmixer, (perhaps something like with bitblender can be speculated) but both have been closed/shut down during the same days.
I wonder if this will be the fate of all mixers today or tomorrow. I never heard of Ecomix, may be not that much popular but I am well aware about chipMixer. I hope they will do fine and continue there service.
On a side note, if most of the mixers shout down then ChipMixer will do monopoly business which will not be a good for the customers in my opinion.
Maybe all tumbler site we shut down sooner or later because after bestmixer been seized openly by Europol some other tumbler site are shutting down their services and what Europol accused bestmixer for was money laundering which we both know all tumbler site will be guilty of that in some ways.