when microsft started accepting bitcoin, i recall that the price went down(the famous drop under 200), the same for other major companies(dell, newegg ecc...)
I is really funny that when we have some really awesome bitcoin news: like you mention Microsoft acceptance, big hardware online store acceptance or something like that price of bitcoin is not rising at all, and as I recall in these cases it event went down a bit. But from the other side when we can even SLIGHTLY disturbing news: like when that ultra tiny chinese altcoin exchange got hacked last month or so, price of bitcoin went down momentarily. What a pessimistic bunch we are...
You guys do realize that those companies do not hold Bitcoin? The more sales they have the worse it is. They instantly just convert to fiat. That's one of the problems of today.
Although you're right. People here tend to be pessimistic and panic often which hurts the price.
The real question is can we change anything about it?
if they sell someone must buy, the problem aren't those big companies selling like mad, but the buyers which are lowering their walls, and the fact that there are few strong buyers out there, the rest are just scared newbies