Things to think about before you call someone "Bad"

[Gallus]

While debatable, even taken at face value, you're equating hostility with harassment. Those are vastly different things. Does it become less hostile if they type a single question mark? Putting all that aside, who made you the arbiter of player etiquette? People are allowed to express their annoyance. Now if they continuously heckle this hypothetical healer, you'd have a point. If done once? It's nothing. It certainly isn't harassment by any stretch of the definition. You're essentially demanded a safe space where people voice absolutely nothing except praise or remain silent lest they hurt someone's feelings. A potentially rude comment does not constitute harassment.

It might not qualify as harassment if you take the incident as an isolated case. However, if hostility happens on a regular basis, I believe we could start considering harassment.

People are allowed to express their annoyance.

People are allowed to do so politely.