What if somebody will make a huge dump and sell it all the way to earn some profits because of this rally in bitcoin,and someone sees it and do that same thing. Is there any effect on bitcoin when someone to this,?
That is called panic selling so the bitcoin is droping if that happen maybe bitcoin can drop the price and start again the price from the beginning of bitcoin. So its big effect in bitcoin if they are panic selling.
But i think this could not happen because bitcoin is too much strong to drop the price unless theres a big desaster coming in all over the world.
Even if price falls in future then we can consider it as an buying opportunity and if everyone starts buying them then again it will take price higher in future, so I don't think there is anything to worry about.