If you are hoping that we'll replace Reddit, then no, not worth the effort. :)
It feels like you're reacting to something I didn't say. Did you hear me say "Nano will replace Bitcoin"? (I know non-autistic people hear a lot of things by implication even if they weren't intended, it's a constant hazard to communication but I won't hold it against you) Edit: I suppose I am hearing you say that if Nano cannot compete, then there's no point in using it. Which you didn't say. Perhaps I missed the meaning and purpose of your first point? Without implied meaning, your comment seems not to be really related to my post.
No. Nano could be useful well before it achieved replacing Bitcoin. But I don't expect even that to happen as Nano will need to be held by many to be best for the use case of value transfer. I don't see Nano reaching that level of adoption because of the alternatives that draw potential users for their network effects.