You are referring to all those people who are always saying "Yes! Buy right now if you want to get rick in a few months! Do it now! and more to those who are just spamming their sig
Dude, this is a bitcoin forum full of people who are so bullish on btc (and desperate for it)
If you think that it is risky to buy, then dont buy, who is telling you that you must buy? no one, in fact, you are the only one who is handling your money in your hand, so you are the only one who can decide.
Look at the charts and make your own decision, i wouldn't buy at this high, because it is very expensive. But litecoin is worth it, if you want to make x2 or x3, buy litecoin now.