I'll save you the click "Rosenblatt went to court, and eventually, in 2016, the city dropped its case against her."

You didn't save a click, that one case is a small part of the article. The focus is the history and current state of such laws.

The fact that the one case they could find was dropped suggests that although these laws exist they arent enforced.

What’s next? “Across America, some places still outlaw sex toys”.

Yawn…

Interesting to note that the root of the complaint was not the number of residents, but the number of vehicles or parking spaces used. Some of those numeric residential restrictions date from times when it was hard to distinguish between an informal/unlicensed boarding house catering to single women and a bordello, so a numeric limit was used to avoid having to distinguish. Source: friend whose sorority house exceeded the limit.

Weren’t those laws made and selectively enforced to prevent immigrants and black people from being able to afford a house? The racist past still haunting American towns.

A question? A statement of fact? An opinion? All of them?

Let me try:

Aren't some commenters impossible to please because they are just generally disagreeable people? Don't they run down everyone else all the time? Is it because they are unhappy with their own lives?

The consequences of bad parents, and teachers and doctors captured by irrational progressive ideation are mounting.

The UK has limits on things like this. Many London boroughs prohibit having more than two households consisting of three people without a licence.

Most people I know just ignore it, the whole concept is ridiculous.

They're called "blue laws". I believe Douglas County,Kansas (US) still has an ordinance that forbids being naked out of doors unless you are also in possession of a bar of soap.