What we can do is do it before they can. This is why monitoring every movement of the coin we invested in is crucial especially if they are not listed yet. It will be dumped so hard if we take a long time to sell it, we are either in ROI or worse in the dust.
I have had an experience before where I bought some coins during their pre-sale period as they were promised to get listed in reputable exchanges, so I jumped and took the opportunity but unfortunately, that was a broken promise and made a lot of investors lose their money. But now, I realize that was a big mistake, I'd rather be buying coins that are already in the exchange whether it was on the top or not for at least we have the chance to sell them if needed.
But we cannot call automatically that they are good because their coins has been listed on reputable exchange since anything could happen especially we cannot control the minds of the devs so trade with proper caution is always we need to do so that we can be aware of possible outcome and can assure that we are always ready to trade it then take profit if anything good or bad happen for that coin. Expect that broken promises made because that's how dev attract their investor so you need to be more smart than them to avoid getting frustrated about things not being followed by them.