I hope I can get 500% returns on my Boeing portfolio but you don’t see me running around Twitter saying that you are missing out if you don’t invest in Boeing.
Not a bad example -- considering there are plentiful people on social media who try to boost stocks that they're invested in, others being primed or posting hopium that their preferred outcome will occur is not very odd.
They probably not only hope it happens, but also hope to be among the first to discover and report on it. That way they can go “hey I was the first guy to notice this” and get their 15 minutes of fame.
That is certainly a factor as well.
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That said, I don't feel the need to psychoanalyze them too much. For our purposes, there's ultimately no need to be too irate at them. Extract what's useful, identify the rubbish, move on imo. And if it's seen elsewhere, then if one wants to correct the record, do so effectively and briskly.