>And the js idea?
It's easy enough to load up gimp and make one. I would not recommend doing it as a matter of course, because in doing that, it makes it harder for humans to actually search for information. This by proxy would help (((them)))
At the end of the day it's a useful countermeasure to use if you suspect your respondent is a bot, and nothing more; It will not work against a human clown, except to force them to engage and actually read.
I'm against measures that use programmatic tools to take discernment away from humans to counteract (((them))). That is no better than being politically correct in my eyes.