photonfarm, I think they give a letter of guarantee - do you have it? Without giving legitimate evidence your claim will not be considered serious. There are a lot of people who wastes other users time.
Signing from the sending address can also proof the legitimacy and Mycryptomixer may accept that as I have seen in another post of Mycryptomixer. Did someone PM MCM about this issue?
This thread is a waste of time, the newbie who would like to open a scam accusation should read the pin thread or even other member's thread so they can have the right format on opening the right format, I have seen a lot of newbies doing this, this is not an accusation but an opinion because OP is not giving all the information about what happened.
If they could make every details public, why would they use mixer in the first place? They have privacy. Let's respect that privacy. Well, the thread could be well organized a little bit more but that doesn’t make the claim invalid.