[aremat]

I'll dodge the question slightly and say that bad execution comingles with what could be referred to as bad taste and intent forms part of the judgement. For example, someone was clearly going for a rustic aesthetic but accidentally introduced a jarringly modernist aspect (excluding deliberate juxtaposition). Or, the intent was clearly to impress the viewer with "sophistication" (a dubious intent in itself), but some aspects are inconsistent or poorly judged. Then there are copies of others' styles (strike 1) executed with poorly matched subject matter (strike 2). Add in banal subject matter or clearly functional art, etc...