Re: 🌀 UniJoin.io - CoinJoin Mixer | Your Anonymity Is Our Priority!
Why don't you use Tor version of the website?
then why Cloudflare? I have not tried managing a site using Cloudflare, but they have many tools and I think UniJoin.io can be edit Cloudflare DDoS settings to improve the user experience. I almost need to solve CAPTCHA every time I visit the site. If others do not have this experience, then perhaps the problem is on my end.I haven't seen a "normal" chain reorg with the abandoned loosing chain branch being longer than one block for a long time now. Thus waiting for two confirmations seems almost safe enough to me. It's basically the smallest amount of confirmations that you would stick to without taking too much of a risk.
A reorganization means that the transaction becomes unconfirmed and not a double spend, in this case 3 confirmations are safe since the reorganization can happen in 2 blocks.I guess they wanted to choose a number bigger than zero and small enough in order for the users to not complain. Perhaps, if they required 6 confirmation there would be questions about "why are 6 confirmations needed?". Same would have happened if they required 3 or, like in current case, 2 confirmations. It is what it is 
2 confirmations will definitely affect the time you have to wait for the coins to mixed, depending on how fast the blocks confirm. This is where I said that if someone can wait for 4 hours for the coins to be mixed, the 2 block confirmations (approximately 20 mins on average) should not be a big concern.
We can reach a compromise, one confirmation to perform the mixing process and not be able to withdraw until you get 3 confirmations, here the waiting time is reduced and the coins are still safe. 