When everyone on r/cryptocurrency is recommending X coin, you should probably wait for a correction.

I don't think it's said enough that price increases require new buyers. When the majority of people on the most or one of the most popular crypto forums are actively shilling the same altcoin, who is left to buy it? Rather than induce FOMO, this should serve as a signal of a local top. The most prominent and recent examples of this that come to mind are ADA, LTO, and VET. The local high points of all of these coins almost perfectly coincides with the weeks they receive the greatest number of mentions in the daily discussion thread. Consider this the next time you are feeling peer pressured to buy the next hot coin here. You could even say that the worse the FOMO feels, the more likely a coin is to stop going up in the near future. At least until people forget about it for a while.