The argument is not that the law isn’t technically followable. The argument is that the law is not based on safety and is capricious and designed to catch and fine people, which could justify ways of avoiding getting caught.
> the odds you get a ticket from a hidden camera are very low if you just respect the speed limits
And the comment I was responding to was about how speed limits are unreasonable. So I maintain that the comment did not refute OP's point. The reasonableness of the speed limits is irrelevant to whether or not you get fewer tickets when you drive below the posted speed limit.
This is the driving equivalent of "just follow instructions"; you're ignoring that they are intentionally making the speed limits difficult to respect in order so that they can ticket you. Telling people not to get tricked is just victim blaming.