I agree with R2C on this. Steve is pretty rigid with his texting rules. If your buddy had texted you the same thing, you'd probably respond in a way R2C suggested. In that instance I think a response is appropriate. When interacting with my XW, that was my mindset. How would I response to an acquaintance? To be fair it was probably Steve who said to treat her like a cashier at the grocery store, so I probably got the mindset from him.
I am strict because most LBSs struggle with this. "OHHHH! WAW just texted me! Yeay, interaction!" It trips them up. I am against trying to decipher when a statement is a question. Or when a question is a statement. I agree with R2C that women do that. Heck, men do it too. But I believe in KISS.
If you get into the game of thinking a statement is a question, it also give the LBS an excuse to break the rules of engagement. Plus it over complicates the rules. So keep it simple. Statements get no response, even if it MIGHT be a question. Questions get a short answer, as short of an answer as possible.
As far as your buddy texting you....your buddy isn't BDing you, and dragging you through a D process.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018