(10/28/23 - This is to prevent search from indexing the following) Four of these usernames contain only one dash or underscore, and have two of the letters from the phrase "free click" in them in order. The remaining username contains the first and last letters of the word "flagging" with the number four.
[All 3-character usernames have ran out on December 19th, 2021.] @6ip and @8b_ are the last remaining three-character usernames that are takeable on Scratch. There are others that haven't been taken, but they're considered as inappropriate usernames and cannot be taken. How I found these usernames are much like what @wvj did: code a Python script to check all remaining 3-character usernames. When a run of my script has finished, it showed that there are 20 usernames that are available, but it's actually 2 due to 18 of them being inappropriate. Thus, these two usernames being the last takeable. For comparison, there are 54,872 possible 3-character username combinations that consist of letters, numbers, dashes or underscores. When you do the math, there isn't even a whole percent left of these usernames that are takeable! If you've taken either of the remaining two usernames, leave a comment on this project. @6ip has already been taken by an unknown user, while @8b_ has been taken by @6x2 (not @2v6 as I originally thought) Update 9/24/2023: Only five of these usernames are now available, down from 18. All of these usernames contain the letter "F" in them.