Prevent the OP commenting on their own post?

Question

Unsurprisingly, most long discussion threads under a post involve the OP — and preventing them from commenting on their own question or answer will help to reduce comments being used for discussion.

If the OP wants to discuss someone's comment, they should have the immediate option to 'take discussion to chat' instead, and be able to @reply from there.

Obviously this would change the commenting behaviour of the OP, but there may be a significant side benefit: a reduction is comments that solicit discussion from other users as we come to realise that we can't simply start a discussion thread on the post any more. All the 'correct' usages of comments would still work, as none usually require discussion:

• Request clarification from the author;
• Leave constructive criticism that guides the author in improving the post;
• Add relevant but minor or transient information to a post (e.g. a link to a related question, or an alert to the author that the question has been updated).

Answer 1

Interestingly, that's kinda gone against what's been conventional wisdom on comments. You can always comment on your own posts (even without the 50 reputation minimum) and that lets you figure out the missing parts of your posts with the help of the community.

Its useful for sometimes working through a problem (which then gets rolled into the post proper). It gives an inband way to do this without clicking through another room. While it can get a little noisy sometimes, the mechanics of the site result in a review by a mod at about 20 comments.

The disadvantage with moving it to a chat room is needing another click and needing to context switch between the two. Moving to chat room is kinda meant as housekeeping and archiving in practice - in addition to allowing for longform conversations. For a active question, this feels more important.