Depends the reason for asking it. I wrote this Ask HN because I thought I could maybe learn/discover something (technically) new from responses on how people would build this with today's knowledge and tech options.
If you waste time on something that's interestning to you, time is not being wasted.
Not if your proclaimed goal is to create a Twitter alternative.
It is probably not for you to decide if how someone spends their time is a waste. That is something only the person can decide.
Absolutely. I think it’s still ok and enriching to put energy into debating priorities.
Waste of time why?
Because you won’t become the next twitter, you probably won’t regardless….
I think there is more to asking the question than that.