I think it should go without saying that if you are posing a question or gathering input then you should by default by zapping whoever provides a valuable answer to you. It bothers me when people ask questions and get really good, thoughtful answers that undoubtedly took several minutes to write but the poster never zaps them for their expertise or input.
I think you're talking about the other types of posts though, right? The people who are like "I have 50k sats to spend over the next hour, whoever responds to this will get zapped!" Yeah, those are not v4v. They're playing a vacuous game that brings no value to either party.