While there's at least two sides to every issue, it can be thought of in terms of where a stock would be if EVERYONE sold upon news? .0001?
The more that people simply buy and hold, the more stable a stock trades, and the less volitile it remains.
Not saying that EVERY stock is a buy and hold, but when sufficient proof (DD) has been factually laid out, those who are 'Longs', tend to feel insulted when flippers don't treat the company as kindly as they themselves do.
Forgive my example, but flippers are like stock sluts or whores...only there for a 'wham, bam, thank you, M'am', and their gone, taking with them, profits that came from someone else's pocket.
When flippers buy in, they give the general market the false impression that the stock is going up in a sustainable manner, leading others to misinterpret the buying action. Then, when the flippers sell, not only do they often 'kill' the pps, they leave bagholders behind, by exiting and by bidwhacking at the same time, and sometimes even cause such a downward momentum, that it hurts the company, the Long shareholders, and the chart, as well.
A chart is very much vital to all publicly traded securities, as it tells stories that the more experienced can invest by. Bidwhackers (more frequently, a trait of flippers than Longs) can decimate short term hopes of Long term investors.
I could go on, Gregory, but this gives a little idea why flippers are not very appreciated.
to make a million bucks over night" 
