[shawnee_]

"Please don't sign comments; they're already signed with your username. If other users want to learn more about you, they can click on it to see your profile. "

Applies to job title, too. Yes, even at companies who are special enough to get millions of dollars from VCs.

source: "In Comments" https://news.ycombinator.com/newsguidelines.html

[vmasto]

Every rule has its exceptions. Sometimes it's nice to be able to quickly verify that the person answering a very specific comment about a specific company works at that company by avoiding the initial confusion or having to click anything. Let's not be overscrupulous.

[thedufer]

I think it's important to take the bigger picture into account here. Letting us know who she is was a key part of that comment, since it's immediately relevant to the content.