I don't agree with that, it will be auto dump and couple of bucks in the short term, but thats what auto-switch pools are for.. if you believe a coin will increase in value and you want to invest, just mine it or buy it
yes multipools kill the value of any coin soon if multipools start adopting monero or any other cryptonote currency soon they will all devalue and once again nothing profitable to mine so do you want to make the absolute most for another month then boom nada ?! like how it happened with all other coins, right now there is nothing to mine but cryptonote ... all other algos are not profitable to mine because of multipools dumping their prices into the pits of hell, take care