15
Sure, if a screen shot removes ambiguity or clarifies an answer to be correct. If the criteria of a question hinges on the usability of software A not being ideal, with hopes that a yet unknown software B that accomplishes the same thing with a better UI can be found, then screen shots are probably the best way to illustrate that.
They're also considerate, ...
8
A is definitely frowned upon by most website owners (myself included: if I find a site excessively hotlinking, I send mod_rewrite to take care for that – taking the hotlink as invitation to place a banner of my choice ;)
As Timmy brought that up in a comment (asking whether my statement to A also applies to e.g. Google Play), let me add that there's ...
5
According to What is required for a question to contain "enough information"? it lacks details. This site is about recommending specific software for specific needs. "Looks nice" might be an acceptable criterium in context – but if it's just "an editor that looks nice", it's clearly "too broad".
So unless accompanied by specific requirements, I'd say it ...
3
Off-topic.
I don't have time to write up a full answer right now, but IMO such a question isn't asking for software to perform a certain task, and kills our open-ended anything-that-works model.
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