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Did you try out the service? Looks more like you read the ANN thread and just reworded it a bit

Yes, I tried the site before writing the review. However, I couldn't mix bitcoins since I have recently converted most of them to altcoins. Nevertheless, I did my best in writing the review, and even if it is not selected, it is still okay. Thanks!
If you have not mined bitcoins, you have not used the service. All you did in your review is that you described the services as presented by the Mixer, and you did not actually try them.
There is no specific time for the end of the campaign, so you still have time to exchange some of your altcoins for bitcoins and try the service before publishing. I think it is permissible for you to modify your published post, and therefore you may not lose the effort you have made to write it. It's just that you were a little hasty. good luck
I would like to ask Hhampuz when the campaign ends and how many are expected to accept their reviews. I don't expect all applicants will be accepted even registered before 2023.
I also think that it is possible to know how much is the campaign budget pool or even publish the escrow address, since the participants will have to publish their addresses publicly, and therefore there is no point in hiding it. Thank You