i was always adding 20 or whatever posts in a day then using crappy scripts (sql) to change the post dates to something random...
wrote a quick plugin for wordpress to do it from the wp admin panel.
its pretty minimal in terms of features & there is no undo or whatever so only do it if you definitely want to change the post dates.
can change post dates for only posts with a certain tag or certain category. or all posts.
http://wordpress.org/extend/plugins/...om-post-dater/
thought it might be handy. can select a minimum date (days in past) and maximum date (days in future) as the range of dates it'll randomly change the post dates to.
demo video
https://youtube.com/watch?feature...&v=7_C058wy4UY