Google does not want an average webmaster to use the Disavow tool


This question has been discussed at Google hangout and brought up to my attention by Marie_Haynes

Currently the Disavow tool is not linked from Google Webmaster Tools and you can only find it searching for it in Google or navigating from the Help Center

The reason is not surprising but it's nice to see Googlers being at a loss of words trying to explain it:

It's an adavnced tool. The tool Googlers don't usually recommend a random hobbyist webmaster play around with. You need a really strong reason for using the tool.