Okay, I'm gonna say it now, having the new like notification be
'(Person) thought your post in the thread (thread) was nebulous' might not be the best idea.
Why:
(of a concept)
vague or ill-defined.
"nebulous concepts like quality of life"
synonyms:
vague,
ill-defined,
unclear,
hazy,
uncertain,
indefinite,
indeterminate,
imprecise,
unformed,
muddled,
confused,
ambiguous,
inchoate,
opaque,
muddy
"his nebulous ideas about salvation
Basically, saying something is nebulous is like saying it's undefined and not thought out, basically the same as the 'dumb' rating, which is probably the opposite of what we're going for as a replacement for the like rating.