Yes, I don't see the point of "hey guys, I'm still here" proofs. I didn't think they were necessary, but clearly Trump thinks so if there is nothing further to the message.

If I was optimistic I'd say it's him confirming the trip to Taiwan is a white hat plan. Pessimistically I think it's all a bit pointless because it could just as easily be him throwing out a red herring or something more sinister. The posts are publicly available and I'm sure black hats have autists at the alphabet agencies watching him like a hawk, so the message may not be for us. To be honest it's probably a bit narcissistic to think any of these messages are for us.