How to post on Konoha's Craigslist - The RIGHT way!
1.) Just as on
Craigslist, all posted ads are considered to be anonymous. Your character can, of course, sign their name at the bottom if they want to be known. The exception to this is the Discussion forums, where your character's username and icons will be visible.
2.) When responding to an ad or discussion, reply to the thread directly. Replies to ads will remain anonymous unless signed, while discussion forum responses are not anonymous. All responses are visible to other characters.
3.) How to post:
1.) Post to the community, not your character's journal.
2.) Write your posting title and location into the subject header. For example, if Itachi wants to buy a pair of glasses, your subject line might read "Sufficient pair of vision-correcting lenses. (River)"
3.) Write the category (and sub-categories, if applicable) into the tags of your post. In the above situation, your tags would be 'for sale, items wanted'.
3.) Of course, write your post itself.
An example post can be seen here.