only if they own most of the coins they can do this
if i own most of the coins then it makes sense to pump it
to dump from 450k to 500 sat only means 1 thing a person like surplus bob or bob surplus what ever he called
if he as put in 100 btc to buy. pumps it to god knows 30 fold he will wait because not every 1 will buy at top rate
 then what he does say 400 btc buy walls he will sell all his coins his whole 100 btc and even if he makes 40 to 50 btc back its a winner
so he as took 150 btc out of the market his 100 btc back plus 50 btc he made
so that is why you would see a dump from 450k to 500 sats
devs dont want that to happen not unless your a scam dev

anyways buy small amounts newbies just dip your toes in and you will get a feel for the market
 at this price buy 10k at 360 sats and wait if it drops to 260 sats buy 10k more if drops to 110 sats buy 20k then it will balance your high buys out and you end up paying about 220 sats for 40k worth
which cost you about 0.2 or less
then if it rises to 450k sats how much will 40k be worth in btc woooohooooo