Shared short codes are not permitted in the US and Canada or in most countries worldwide.
The only (very narrow) exception to the prohibition on shared short codes that is permitted by US/Canada carriers is a short code that sends OTP (one-time passwords) or authentication codes with strict adherence to a template, and no option for customization by the brands that are sharing the short code.
I’ve personally been messaged on a few different platforms saying that I can be a seller for marketplaces and make 2500+ USD a week. I assume that it’s these big companies that they’re talking around as to try and not spill the beans because I assume it’s below the line in some way.
I honestly wouldn’t expect to see a lot of that, being that in my anecdotal evidence the majority of K-12 educators would likely fall under a more generalized population, than what lemmy currently is, which is generally very technical and STEM oriented.
All the other subs on Reddit didn’t exist until general population got pulled in with memes, and started partaking in communities there. Lemmy is just like Reddit was, when Reddit was young.
I think your bias may be showing. The average computer user doesn’t even think about using a password manager. It just exists and works in their browser.
The way that profiles works today is the reason I don’t use it. Chrome just handles it all so gracefully between profiles and opening links from other applications.
The owners of archive.today explicitly block using CloudFlare DNS because it doesn’t provide sensitive geolocation information which is optional as a part of the DNS standard.
You can Google archive.today and CloudFlare, there’s tons of blog posts and articles.
Problem with that is there may be other services that also leverage the same short code, meaning you may be blocking something you need in the future.
Edit: apparently according to Twilio: