Oh certainly. The lovelies frequenting this meme should feel confident to say if they disagree with an addition to their prompt. Surely it's better to politely add "thanks for this, but it;s not to OP's taste :(" than sit back and watch your prompt turn into something you're unhappy with, or having a mod shut it down? Of course, both options are entirely valid, it's all about what people are comfortable doing.

I don't think anything's gonna drastically change here re: the reminder of the rule. Discussion isn't going to stop (I hope!). Memers are just going to have more awareness that changing a prompt too drastically is inappropriate, unless the OP has specifically asked for changes.

Looking forward to hearing what the mod has to say on the subject!