Bitcoin is great for prospecting, laundering money across borders, and scamming gullible people. It's also easier to hide a stash of stolen bitcoins from the authorities for after you get released from jail than it is to hide a stash of actual money. Bitcoin is certainly no alternative to actual money but it's not entirely useless.
I think these Twitter DMs only does the scamming the gullible part, as you need to pay to use the feature and this is scamming people into thinking they're paying for secure messaging.
When you see a few satochi being actually exchanged, on chain, do you think 'he bought groceries' or do you think 'he paid his yearly Onlyfan access/his ketamine stash'? In my experience, it's the second (I'm not in the US so it might be different). Not that I assign any moral superiority to either actions, but BTC itself as a payment system and not store of value isn't usually used for groceries, can we agree on that?
I think these Twitter DMs only does the scamming the gullible part, as you need to pay to use the feature and this is scamming people into thinking they're paying for secure messaging.