Nextdoor. Freaking nextdoor is the absolute worst. I only have it because it's a decent "local Intel" source because nobody talks to (or knows) each other in suburbia anymore.
But it shows you like the first 10 words of a post, and just opening the website on a phone practically locks the whole page with a "GeT tHe ApP!" Pop-up.
Know what? Yeah I should dump it. Save my mental health. Lol
The local school does this where you need an app to view their daily posts. You also get an preview sent to your email with the first 100 words or so and an link to their app.
Does their system know how to email to hundreds of users? Yes.
Could their messages be transmitted via text? Yes.
Could their messages be posted on a simple WordPress blog? Also yes.
Can I view their full messages on any platform independent device or web browser? No.