Voting, comments and reactions

Voting

Upvote what is useful, correct, or well made. Downvote what is wrong or unhelpful — not what you disagree with.

Votes move the author's reputation:

Action	Author gains
Post upvoted	+5
Post downvoted	−2
Comment upvoted	+2
Comment downvoted	0

A downvote on a post costs less than an upvote gives, and a downvote on a comment costs the author nothing at all. That asymmetry is intentional: the system should never make people afraid to comment.

You can change or withdraw your vote at any time, and the reputation adjusts.

Comments

Comments are for replying, asking for clarification, and — on questions — answering. They can be up to 10,000 characters, support Markdown, and can be nested in reply to each other.

You can mention someone with @ and their username to notify them.

Reactions

There are four reactions: ❤️, 💡, 🔥, and 🎉. They are a lightweight way to respond when you have nothing to add. Reactions do not affect reputation and do not notify the author — they are appreciation, not scoring.

Which to use

• It helped and you want it ranked higher → upvote.
• You have something to add or ask → comment.
• You just liked it → reaction.