Wordpress plugin
 

I search for WP plugin which puts rel="nofollow" after all links in the pots. I found plugin which put it in comments, but there is no plugin for posts.

You can do that yourself by manually updating the quicktags.js file located in the 'wp-includes/js' folder.

On line 371 replace
with

Only 1 quotation mark is required at the end of the string, after 'nofollow', not two.

Single quotes are being used to seperate the HTML from the code

means

Code:

---

Generate this on the page, please addurlhere" rel="nofollow">

---