useful heuristic: every comment I've seen with excessive 9s was nonsense

You really think if I asked 200,000 people in my city, only one would have heard of Meta RayBans? when there are billboards, magazine ads, and window stickers in every glasses store? Couldn't tell you the real number but it's probably closer to 1 in 5.

Not uncommon, in comments like these, for there to be so many 9s that the population of Earth is exceeded.