So I'm reading further on. I wouldn't dare insult and say she's not a successful SEO but I could say her mockery isn't too spot on...
She ties in "SEO theories" with facts and common SEO practices. We do KNOW that changing the title tag of your pages can influence you're rankings, up or down. According to this years Search Engine Ranking Factors report, the
top 5 ranking factors, Keyword Use in the Title Tag came out in second. Cabbage on your monitor didn't even make the cut.
So at best, she's (Jill) asking (in the above quote) for SEO's not to come into her forum as say "hey, I changed the keywords in my title and my rankings went up" because they "may have" or "may not have"?
I see no point to that quote, but correct me if I'm wrong...