I(In the past those folks were allowed in to make sure their bribes worked, or that their fear tactics worked...)
Well, bribery and intimidation are already things for which there are laws against...so if you're saying that electioneering is a form of bribery or intimidation, then it shouldn't be allowed at all, much less allowed at a certain distance.
But these laws don't stop electioneering, bribery, or intimidation...they just set parameters within which those are acceptable, but those standards aren't based on any science or data...which makes them arbitrary.
Basically, it places a limit to where that kind of thing can happen to people. IMHO... 150 feet is actually too close. But I follow the rules and mark the 100 feet limit (even shorter here in CO) when I am an election judge
100, 150, less than a hundred...it's all arbitrary. Nothing is based in fact or data. It's all feelings and emotions. That's no way to run our elections.
And also, CO is almost entirely vote by mail and has automatic voter registration, so I'm not sure why you and other crackpots are referring to it in this context.
They don't have long lines at polling stations in CO because most everyone there votes by mail anyway.
In the 2020 election, less than 80,000 people voted early in-person, which was 3% of all CO voters. CO had virtually no wait times in 2020, and 97% of the votes cast were cast by mail.