I think $ 300 is Ethereum's lowest price limit if it reaches $ 200 then it's already at the lowest price threshold and will certainly make people panic and will sell their assets so Dump happens.
Agree, If ETH hasn't reached the bottom 300 would be it. We have a long line of support at 300. I don't believe we will reach that level (at least any time soon), but if we do I would assume it wouldn't stay there for long (as long as price drop isn't relative to BTC or if some black swan event were to happen)