1.Who the hell still sends BTC to the wrong address? This isn't 2012. Double checking is a must and I'm sure that all Bitcoiners double check the address, before sending any BTC.
2.There's nothing wrong with FOMO and buying at the ATH price. The only wrong move is panic selling.
This requires a willingness to double check. Another problem is when we unknowingly get a clipboard virus. I've had this before. Luckily, I did some checking. Checking the entire address combination is great but many may be lazy and check only the end or middle.
I think everyone will regret when buying a high price and that price never returns to being high. Actually, I think it's wrong when you're looking for profits at a price that's already high, it's more difficult to get profits.