It can be seen in two ways: "catching a falling knife", or "buy when there's blood on the streets". I''m on the second camp, I think national currencies are being devalued by printing.
I think for BCH it's the former but not sure about Spice
It's a token, memo doesn't have a token. Basically it's a proof of meme token, but the supply is too big and centralized for me to consider it seriously