Sure, if you want to read the messages, but the whole point is that that's rarely necessary and the price isn't worth the minimal gain.

Of the serious criminals, the only ones you'll be catching are those with low technical knowledge (everyone else will just be using their own applications) and the Venn diagram of those with little tech knowledge and those whose digital privacy practices could deceive law enforcement resembles AA cups against a pane of glass.

Regarding Encrochat, it is no surprise that an (unintentional?) watering hole gathered up a bunch of tech-illiterate, the fallacy is that those people wouldn't have been caught if they weren't allowed to flock to a single platform for some time.

Would some people have not been caught until much later or even not at all? Sure, but if LE would do its job (and not ignoring, or even covering up, well known problem areas and organizations for years to decades), only those of low priority.

Is that little gain worth creating a tool to allow Iran or similar countries to check every families' messages if they suspect some family member might be gay?

Hard nope.

> Or just downvoting me.

Don't worry, I rarely do that and that's not just because I can't...