--snip--
even a sticker like that leaks alot of information including the fact that you are knowledgeable about crypto. you know about bitcoin and maybe you prefer to use an an alternate cryptocurrency such as ethereum. then they start asking you why you don't use bitcoin and you're in a discussion about cryptocurrencies and how you handle your finances...
I would say "have heard about Bitcoin" is more accurate than "knowledge about Bitcoin". People could hate Bitcoin by keep hearing news Bitcoin price crashing or misused by criminal. But otherwise, i agree it would make people stand out.
--snip--
You seem challenged in understanding sarcasm.
These days, it's harder to tell whether people being sarcastic or actually mean what they said.