It goes back to 2016/12/13 thanks to taptoshi, who is no longer active on the forum. 
Unfortunately the modlog has no dates. I can start collecting the date now when I scrape it from the log file, but past records are not timestamped. I could guesstimate the date range based on the ID number like the OP though.
Unfortunately the modlog has no dates. I can start collecting the date now when I scrape it from the log file, but past records are not timestamped. I could guesstimate the date range based on the ID number like the OP though.
That's a decent sample size. I guess the exact date isn't that important, I was just interested in what sort of percentage of new accounts do get nuked in recent times as opposed to years ago.