Here are some comment drafts for the auto comment extension which can be easily imported/exported into the extension:
###New user introduction
You may wish to take a look at the [about] and [help] pages; they're useful introductions to the site.
###Unexplained link to external resource
Links to external resources are encouraged, but [please add context around the link](http://meta.stackexchange.com/questions/8231/are-answers-that-just-contain-links-elsewhere-really-good-answers) so your fellow users will have some idea what it is and why it’s there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. When in doubt, see [How To Answer](http://$SITENAME$/help/how-to-answer).
###Answering in comments
@[type here], thank you for providing helpful information! If you believe you have enough information to post an answer, please do so. While I do appreciate the input, answering in comments is actively discouraged. Thank you!
###User should be editing post instead of responding
@[type here], thank you for clarifying your post! Instead of using comments to include additional details, it is highly preferable that you [edit your post instead](http://$SITENAME$/privileges/edit).
###[A] OP using an answer for further information
I'd like to request that you use the *Post answer* button only for actual answers. You can modify your original question to add additional information or expand; however, if you have a new question entirely, I ask that you instead [ask a new question](http://$SITEURL$/questions/ask). Thanks!
###[A] OP adding a new question as an answer
If you have another question, please ask it by clicking the [Ask Question](http://$SITEURL$/questions/ask) button. Thanks!
###[Q] Question is not clear
Would it be possible for you to expand upon your question? I'm not entirely certain what you're asking; please provide as much information as possible when asking. Thanks!
###[A] Cut it out with yer' bickerin'.
@[type here], while I appreciate your efforts, arguments in comments tend not to be constructive. If you believe you have a differing interpretation, you are welcome to post a new answer below. Thanks!
###[Q] Cut it out with yer' bickerin'.
@[type here], while I appreciate your efforts, arguments in comments tend not to be constructive. If you believe you have a differing interpretation, you are welcome to [post a new question](http://$SITEURL$/questions/ask) to clarify. Thanks!
###[A] Frame challenge without legitimate answer.
@[type here], while we do accept [frame challenges](https://rpg.meta.stackexchange.com/q/6842/23064) as valid answers, [please also answer the question as posed before offering your critique on the subject](https://rpg.meta.stackexchange.com/a/3319/23064).
If you think these wordings should be changed, or would like to add your own to this list, feel free to edit it.
Note: the new user introduction comment excludes a welcome, because the auto-comment adds it automatically for users less than one week old.
Note 2: Any [type here] blocks will automatically be selected when the comment is inserted, so you can begin to type over them.
The "Unexplained link to external resource" and "Question is not clear" comments were taken (almost) verbatim from BESW.