I believe in general Internet parlance its usage is closest to A, and more rarely C. Obviously, since A could be made about pretty much anything, it is typically restricted to “the concept exists, and is acknowledged by a sufficient number of people” (e.g. “Rule 34 is a thing”).
And since the phrase “is a thing” is acknowledged by many people, we could say that “is a thing” is a thing. Unfortunately, “”is a thing” is a thing” is not yet a thing.
Saying “x is a thing” is a way of reminding people of a relevant concept that may have been overlooked. Whether it’s an actual physically existing thing or not depends on context.
Question: what does it mean to say “X is a thing”?
Does it mean:
A) The concept exists? (e.g. Unicorns are a thing)
B) The concept may not exist yet, but it could exist? (E.g. lunar colonization is a thing; but unicorns are not a thing.)
C) the concept actually exists (Space stations are a thing.)
I believe in general Internet parlance its usage is closest to A, and more rarely C. Obviously, since A could be made about pretty much anything, it is typically restricted to “the concept exists, and is acknowledged by a sufficient number of people” (e.g. “Rule 34 is a thing”).
And since the phrase “is a thing” is acknowledged by many people, we could say that “is a thing” is a thing. Unfortunately, “”is a thing” is a thing” is not yet a thing.
“”is a thing” is a thing” is a thing in sense C.
Saying “x is a thing” is a way of reminding people of a relevant concept that may have been overlooked. Whether it’s an actual physically existing thing or not depends on context.
Context dependent, and possibly the distinction between the three is not really a thing.