I'll share my stats. This is what I've received so far. My ad was posted on August 29 and it's September 17th today.
Regular: 8,450 Mobile: 14,275
Clicks / CTR: 732 / 3.221%
Regular 536 / 6.3424% Mobile: 196 / 1.3729%
Unique: 98 Solo: 59
My ad(s) have been seen 22,725 times and clicked 59 times. This traffic matches up to what I'm seeing reported on my Etsy site. My ad runs in 5 states of the USA according to my settings.
According to an explanation that I have received in correspondence with Paul, which I'll likely botch in the paraphrasing, the "Regular" and "Mobile" numbers for Clicks/CTR can be disregarded, more or less. The "Unique" and "Solo" numbers represent something like an upper and lower end of the actual human clicks my ads have received. The discrepancy, per my understanding, is due to factors largely beyond the control of permies.com, and is attributed to scripts run by advertisers that appear to exist in order to inflate the number of clicks any site receives.
Solo = approximate "number of human people who have clicked the link".
Unique represents same group as Solo but allows for some counting of multiple clicks from one person on the same link.
Other advertisers should know that I have received substantive, helpful replies to the few concerns I've shared regarding my ad, which were mostly about my regional settings and stats.
* I do notice that each time I have edited my ad, the ad no longer runs until approved by a staff member (which is acceptable practice). After a 3-4 day wait for someone to approve the change, however (including weekend) I do contact permies staff directly with the same request, after which my ad begins running again. My edited ad is currently in need of approval...! So maybe I won't edit an ad on Friday if I'm hoping to get clicks on same Friday, unless I hear differently.
* I just edited my ad to include the lower 48 states, and received an error after submitting the change. My changes didn't save properly.
Lastly, just for comparison, I'd like to mention that clicks on Google's various ad services cost around $0.60 per CLICK, and by comparison I feel I'm getting a better deal and a more targeted audience. Also, I don't know who all these other advertisers are, but I like permies.com and I personally have been hanging around. :)