Someone is just mad that he/she can't buy any bitcoin.
If you spend more time on the forum you'll see that posts like that appear on a regular basis. Some of those guys that wanted to buy BTC below $1000 a year ago and were waiting for crashes are most likely still waiting. I personally know investors that became angry with BTC for not following their pattern.
Investors are not foolish they invested here to learned more knowledge about business industry but mostly investors are already wealthy and have a stable business firm so they don't feel angry or bored because they have another activities aside from bitcoin they only waiting for the price to rise to prove that bitcoin is in real scenario in the world of economy.