Buys and sells gotta even out or buys have to outnumber the sells. It's like tug-o-war. You don't want the sellers having the advantage.
It's like I was explaining to my boy last night. I know regular CB doesn't have it but CB Pro has limit orders, plus you can see the buy and sell walls. So let's use eth for example since that's on there unlike saitama. So a big whale sells a bunch of eth when it hits 5k. If nobody is buying, then that lowers the price cuz there's more coins out in circulation waiting to be bought. But what ends up happening is it triggers sell orders. Meaning that lets say you got in early and had made a nice profit so far but wanted to set a stop loss order at 4750 to ensure some profit. When that big whale dumps and lowers the price, it automatically triggers your sell order at 4750 as well as any above it and then however many orders it hits as it goes down. Now on the flipside, people that are waiting for dips might have buy orders to get in around 4k or 4250 and it'll help keep the price from dropping more or raise back up if they buying more eth than the sell orders are triggering. Going back to saitama. Not that many people are buying these days. Think a lot are waiting to see what happens with the app, so the buying power to offset that selling power isn't as strong these days.