Trying to help my town public meetings avoid random internet jerks joining the Zoom and spamming racist stuff.

How do these kids usually find public Zoom meetings to harass?

Trying random IDs?

Searching/scraping the web for Zoom links?

What do other places do with public Zoom meetings to minimize this?

Lots of suggestions for the Zoom Webinars product (instead of Meetings), which looks great, except it says it's made for 500+ attendees and costs a LOT more money… for reference, our town meetings usually have a remote audience of about 20 people.
@marcoarment We just use the waiting room feature, and people we do now know, we ask a simple local question: what is the nickname of the bartender at the Sunrise Pub? If they don’t know the answer, they can usually explain why. For us, that’s good enough to keep script kiddies away…