OP, if you're new to bitcointalk you might not be aware that there are these things called signature campaigns, where businesses rent out members' signature and/or avatar spaces, and some of the campaigns pay enough to finance a pimp lifestyle for those who live in 3rd world countries. It's astounding.
My point is that a LOT of people here are only posting because they get paid to do it, and a lot of them are uneducated knuckleheads who have great difficulty stringing words together so that they form coherent sentences. The end result is that they learn how to write a small number of thoughts, and a lot of them are ideas they've copied from places, and none of it is original or interesting. That's the main reason you keep reading the same shit over and over. I think of this forum as a bullshit words reconstitution factory, because that's what they all do. One of the cliches I see very often is "Never gamble [or invest] more than you're prepared to lose", which should be obvious to any rational person, but these shitposters find it necessary to write this in thread after thread.
So that's the main reason why, OP. Others might disagree with me, but this is the truth as I see it.
I find the same thing on Reddit honestly, despite the lack of signature campaigns, and even when the bounty campaigns for coins are long over, the low effort shilling continues. If there isn't any bounty left, what's the point in posting in every damn thread about [insert coin] and saying "Wow! This is great news for [insert coin]!". Are they holding bags? Or hired shills working out of a click farm? I can't tell anymore.