How can a question that is:
1) clearly technical
2) reproducible
3) has a clear failure condition
Not be a suitable candidate for S/O?
Did we step into a dimension where only "How do I print('hello world')?" is a valid question while I wasn't watching, because it has a trivial one-line answer?
Hard questions doesn't mean they're bad, it just means many people aren't competent answer them. The same goes for obscure questions; there might just not be many people who care, but the question itself is entirely valid.
Does that mean they're not suitable for S/O?
I... can't believe anyone seriously believes that hard niche problems are too obscure or too hard for S/O to be bothered to grace themselves with.
It's absurd.
It just baffles me that a question that might take some effort to figure an answer out to might 'not be suitable' to S/O.