Marketing/buzz does not equate with sales whatsoever. Plenty of products get talked up like crazy and fail horribly.
It excludes marketing. It excludes websites run by the companies themselves. This is just ordinary people, talking about games, on various websites and such. It's a rather good measure of what people are playing (people talk about what they are playing) and interested in (people talk about what they are interested in). If people were increasing interest in the OSR "exponentially", we'd see it reflected in what they're talking about. They would say things like "Should I buy Labyrinth Lord or C&C or ACK?" and it would get tracked.
None that I can publicly share. Sorry. But note that I didn't claim a particular figure.
You did claim a figure. You claimed "exponential" growth. And then you demanded a source from Morrus when he made a claim. So, it's fair to me to ask you for your source.
Only if taken in the context of mathematics, where as I am using it in the informal literary sense of 'rapidly'.
There is no literary sense for "exponentially". There are lots of synonyms for the word "rapid" and "exponential" isn't one of them. It has a real meaning, and that meaning is more than merely "rapid".
Again, don't equate chatter with actual/potential sales figures. People don't blog a lot about cheap used cars from the 80s, but you'd be silly to believe there was not a great deal of money still being exchanged by private parties on a daily basis in comparison to sales/marketing of new vehicles by dealerships.
People DO talk about those cars. How to repair them, how to obtain spare parts, that they are selling them, that they are looking to buy them, that there were various recalls on them, etc.. The internet talks about everything going on in people's lives. Normal stuff doesn't get hidden.
If the OSR were growing at a much more rapid rate than Morrus said, people would be talking about it a lot more. Even if you think the numbers are off by 100%, his claim still holds up and yours does not. So far, all we have to substantiate your claim is you...and nobody has any clue who you are. You're brand new, with no stated credibility in the field at all. Meanwhile, you called out Morrus as being wrong...who has run one of the largest D&D websites in the world for 15 years, and is himself a writer and publisher in that field. And his claim is backed by objective data - data which you dispute, but you won't offer any objective data yourself.
You can see why people might not take your claim as credible?