Quote from: mattrk on June 27, 2016, 05:55:49 AM

Quote from: mattrk on June 27, 2016, 04:25:33 AM

I just ran about $100 in bitcoin through the joinmarket tumbler script. I used all default settings. (No extra switches) When the script finished, i added up the coins the script sent back and have discovered that i only received 84% of my coins back. I expected to pay some fees and such. But 16%? Huh

? I mean... people on the internet complain to the end of the earth about the 3% fees they pay to Helix and/or other well known tumbling services.

Did i do something wrong? Or is 16% in fees par for the course?

After carefully going through the logs, i have concluded that i did indeed pay 15% in fees. There were 20 transactions and each transaction cost me between .0003btc and .0016btc in fees. Since i only tumbled .15btc, i paid about .0225btc in fees. So, no glitches. Moral of the story is that you apparently shouldn't use the tumbler on small amounts. I feel like this should be stated in bold on the github wiki page. I know the software means well but it really just leaves a really bad first impression.

It would be very helpful if the script would try to calculate all of the fees up front. I'm not sure how easy that would be to do since i'm not exactly sure how the script works. But it seems like it might be possible. I'm just very hesitant to even touch the software again for fear of losing money. In my estimation, the tumbler script isn't worth touching unless you're tumbling .5 or .75 btc. Maybe i'm wrong.

Cross posting answer: https://www.reddit.com/r/joinmarket/comments/4q1ito/i_just_ran_my_coins_through_the_tumbler_and_all/d4psmzh