meh, I don't think so. Just because he says that doesn't mean it will go that way. Bitcoin will always have a price if there someone wants to buy and own it. Even if the price of BTC down to almost zero it will go back up again, but yeah its just based on my own opinion I'm not an expert about this though.
I agree with you, Bitcoin wouldnt be that popular if Bitcoin doesnt seem to be performing, although the price really depreciate at some point what makes this community functional is that it allows everyone who has the capability to make themselves profitsble and I think we should not belittle the value of this forum.