Thank you for having me as part of your signature campaign. Grateful for the opportunity to spread the word.
I was just wondering how this business model can stay afloat with the massive costs involved. Darkstar recently returned from his vacation and I noticed the pay out for the two weeks posting spree would have cost Chipmixer more than 2 bitcoins. Nearly $10k for 14 days which is a massive overhead cost. Given that you don't charge fees, I can imagine the signature campaign eating heavily into profits aka donations from generous users of the mixer.
I hope your customers will donate a more generous portion of their mixed coins. I would suggest introducing a fee system similar to bitmixer's traditional pricing model in addition to an option to donate.