These analyses are usually shared for fun and should not be taken as investment advice or considered too seriously. The best use for them is as part of a technical analysis.
You can track that member's past posts and compare them to the price trend to see the accuracy of their predictions.
Apart from the entertainment they share, it can also be useful as a reference for learning and understanding someone's point of view with the methods they use, we can also see the quality of their posts by the accuracy of their speculation, even though the accuracy of predictions is always not good for most people who carry out technical analysis to see movement opportunities.
Pure speculations, I'm active in X too since before, but only for cryptocurrency things.
There are a lot of personalities like this, especially if you are a trader, scrolling sometimes in X is worth a try.
But some of these people may lead you to their private paid channel or promote some random trash project or referral link to their exchanges.
If that so, you can leaves them and search for others. But if you curious to their private paid channel, you can ask for the cost. If the cost is not too high, you can join but if it is too high, leave that because that is not worth it.
I prefer to use that as consideration in my analysis and not directly trusting on what their share in social media. We don't know the truth so we don't have to be seriously react.
Just analyze and finds more information so you can analyze deep on the market.