Its pretty simple - XMR is effectively a single-exchange coin, and on that exchange there is a constant floating buywall way-bigger than any small XMR investors can touch, being moved up and down, with the whales who own it talking about it in the trollbox - the proof is the whale's words themselves Kazuke! 
I'm not convinced, you have to proof in one line, besides we all know the buy walls magically appear and no human being is behind them if so they are tampering with mother nature
It's a theory and a speculation of his. Just like any other writing in here. BlockaFett finally actually writes something that's not trolling per se, and a legitimate observation. If someone else where to have written what he just wrote, the sentiment towards the content would have been different. I suggest welcoming his new-found tone a bit more.
There's nothing wrong about being concerned that polo is the only legit exchange for Monero.
he is a troll, and you are too naive or dumb to see that, he is finding cracks to get in, like a rat.
Lay it off, yo. I have stated several times that I assume his (and some other's) behaviour is paid for.
I think fluffy/smooths approach to answering are much more productive. They respond with facts and usually level-headedness (sometimes just funny counter-lolz when the trolling gets too ridiculous). And especially, as I see it, for posterity's sake.