[William Tell]

"It could also be viewed as a reasonable restriction ..."

I think you omitted the expectation that the restrictions must be "content neutral".

The conversation I quoted above is all the proof that one would need to see that the practice of censoring voters is not content neutral.

[Bob]

Agreed — the laws that I’m familiar with relate only to candidate or proposition advocacy. Nothing contained in the constitution would run afoul of those restrictions.