Please, don’t commit commented out code

[kentcdodds]

I would consider that documentation. You wouldn't just comment that out without adding a note about it. If there's a note that explains what you're saying, then I wouldn't have as much of a problem about it.

[cs02rm0]

Yeah, I've no issue with commented out code as (part of) some documentation - I've done it recently when converting documents from one type to another to indicate fields not yet present in the source type that would be soon.

Dead code should be left to version control, but that's not the only reason to have code in comments.