I don't know the code, but I'm 99% sure that starting a comment does not save anything into the server's database until you really submit it, so going back or closing the window is really enough ;-)

IIRC, technically speaking, it might reserve a row/node_id theoretically, and might save content into a session/cache table that gets emptied often, but none of this is matters as there is no "cancel" option

In reply to Re^3: Kill your "Comment" before you post since it's incorrect? by Anonymous Monk
in thread Kill your "Comment" before you post since it's incorrect? by flexvault

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