I don't think they realized what they created both positive, and negative. On the one hand, its a nice little phrase that it seems that most people are aware of which creates exposure to Bitcoin, and its self explanatory what it means from an outsider. However, I'd estimate over 20k reports on users just saying "to the moon", predominantly within the altcoin section, but also within Bitcoin discussions too. So, although its probably primarily seen as a good thing, it has caused a few headaches on the other hand.
I wish we could still new vocabularies to crypto up til now, it's like creating our own language that a normal person could not easily understand
wish I could invented my own words, It would be very feels so proud when all people in the crypto space is using it.
It might be cool for those in the know, but if we want people to adopt Bitcoin, and its ideas then we want to remove jargon as much as possible. Its why laymen terms exist, because digesting written laws, and medicine studies for the average person is quite difficult because of the prevalence of jargon. The one off doesn't really hurt, and is easily searchable, but when you start incorporating more, and more complex "slang", then it becomes harder for people to become involved with Bitcoin.