Someone suggested me to put comments or reason along with the link, to which i want to disavow. Is this necessary to do this, is there any effect to it, or it is just a formality?
@Honey497Mar 25.2014 — #Yes, it is important to put the reason along with the link. Through this Google will know that why you want to ignore a particular link.
@howardbaileyMar 25.2014 — #Well I used once or twice this disavow tool and I didn't added comments as per instructions present in google webmsater tools help.