I've just factored in 61,000 posts in what must have been 6 years. So 10k per year upto then. But then the content doubles by then, so you'd have kept up with the pace and you'd be 20k per year from 2014 to 2021.
That'd take your post count up to about 199,850 by now I'd rate.
So I've changed your figures to match matey. And you like to post ratio was always around 1 post = 2 likes easy on average (was always the highest ratio on the forum) so I've reflected that too.