[molticrystal]

While not foolproof, a good metric is being wary of any platform that wants your phone number(google, facebook, discord, twitter, etc), these tend to be the ones that seem like places you can build a foundation on, but really they are ephemeral and you can unilaterally lose access to years to decades at any time. Get the data exports if available regularly if you are using them.

Try to roll out your own internal commutation services in house if possible, it might be a hassle, but now you are likely seeing just how valuable it is to have true control over your own accounts.