Let me append a rather simple one. Almost all altcoins are a scam, and just because something can be profitable that does not mean that it is not a scam.
This one of the thing hindering folk from investing in bitcoin . Most people think that to for them to start their journey they need 1 BTC or more thinking 1BTC is the minimum amount to purchase while investing bringing the idea that bitcoin only for the rich .
Rightfully disagreed. I've seen this argument many more times than the number of people I have seen who believe this. Over half a decade of reddit I have seen a few users believe that they can't buy fractions of a Bitcoin. It is quite a basic concept.