There's also variable levels of sophistication for scam messages based on the desired target. If you're looking for a whole lot of people who don't understand technology enough to see through your premise, you go with the generic "hello sir and/or madame I am hackor send gift cards or I will delet ur phone".

If you're after a very specific person who is well known to be privy to the normal red flags, you're more likely to create a custom spear phishing campaign and mimic as closely as possible the format, lexicon, domain names, etc of something reputable to avoid setting off their BS detectors.

With that said, yeah there's enough people on lemmy that this low-effort take is worth a shot