There are occasionally things I want to see on there: a new Costco going in where the OSH Hardware used to be, or whatnot. So I got the daily email digest. One email per day -- tolerable.
Then it stopped coming. I wrote to Support, and their guy swore it was still being sent! I said "no, it's not. I looked in Spam and Trash." He swore again that it was going out, and I should "check with my email provider."
I asked "How do you know they're going out? Did you look in the Sent folder?" He got all sniffy and said "We are unable to disclose anything about our internal operations." Ooh, big secret!
So I wrote to the Nextdoor handle on Twitter. They told me there was an experiment going on. I asked if they could take me out of it. They did and all was good again.
Except other people on Nextdoor were also unhappy about being in the experiment, and asked me how I got out of it. I told them; they tried it; Nextdoor now refused to do it for them.
Think about it -- almost every site on the Web is trying to get you to sign up for a daily email. Nextdoor already has one, and they're trying to take it away.