@4ebb1885 this is a valid criticism for problems for which they *aren't* useful, and I am similarly insulted when I point that out in a narrow domain and someone jumps down my throat about how useful they are (in that person's opinion) in totally unrelated domains.

I don't think *everyone* who finds them useful/interesting is a credulous fool taken in by dancing bearware, but I also do believe that such fools do exist in non-trivial numbers. 

 @cf232284 That's a very reasonable take. I love "dancing bearware"!