[DamnInteresting]

> I'll be that guy and point out that "Unique" is interesting because it falls in the same category of words as forever, infinite, dead, and pregnant, adjectives which do not take comparative qualifiers because they describe Boolean states.

In common contexts "unique" just means "unusual." It's like how "theory" can just mean "hypothesis" in normal discussion, but in strictly scientific contexts it only applies to explanations that are supported by a large body of evidence. So if one is in a rare context that is sensitive to the strict boolean definition of "unique," then you are correct. All other times (i.e., most of the time) you are incorrect.

When it comes to language, the most common usage is the correct usage. This may occasionally annoy us (see: "literally", "begging the question", etc.), but the fact is that languages are fluid and evolving, and there was no moment in history when the English language was frozen and declared perfect. Language is inherently democratic, and sometimes one is outvoted.

Granted, it's fine to try to realign the language to match your preferences, but more often than not this is a fool's errand.