The irony is this post probably marked the bottom to the day, and if not a bottom, obviously a major low.
There's a few lessons in that:
1) Always watch for Armageddon scenario posts like these to take the other side of the trade. It's often a signal of sentiment being at an extreme. In this case, ETH/crypto was on the edge of breaking down, but it didn't - it did the exact opposite.
2) Whenever you see a trade where the technicals indicate a potential major breakdown or major breakout, and it doesn't... the market you're watching tends to move in extreme to the other side.
For example - let's say you see a market about to breakout and it's the best looking pattern you've seen in a while, but instead, it hits your stop and keeps going lower. You realize shorting would have been the better play. Same goes in reverse. If you see a possible breakdown but the market doesn't break, buying was the better play. This is why false moves tend to be some of the best trades and you could develop a strategy entirely based on false moves.
3) Understanding time-frame on a trade is extremely important. So if you're watching a monthly or quarterly chart and it "looks" like something will happen, it does not mean it will - that is why you always hear "wait for the close." This applies to every time-frame - whether you're trading on the hourly or daily, the price action before the close of the candle/bar is often deceiving. This is something you cannot backtest, because when you look at price history all you see is the close, rather than the challenges from price deception in *real time* before the close of the time frame you're trading.