On a similar note, please don't send a private message to someone asking a technical question more suitable for a channel. It puts unfair pressure on the receiver, denies others who could help the opportunity to do so, and doesn't help others who have the same question (including the answer not being archived in search).
Yeah I get that. That was the case at my last job as well. But I also said "can you ask in foo channel?" several times a day, every day. It truly got old and was a pretty big distraction. That's why whenever nohello comes up, I make my original comment.