Seems like you might have gotten a "win" against a poster while being out 100% of your investment here and wrong for 4 years. Nice. Posters!!!!!!
I am sure anyone following knew exactly what the poster was saying, of course, and I am sure, being right for the 4+ years, that that poster knows he might have technically worded it "former shareholders" but knowing everyone would understand regardless, decided against it for brevity sake.
Looks like you're developing a nice little niche semantically policing correct posters with nothing to otherwise offer.