The real issue is not the similar domain name but if your use dilutes the value of their name. If a person thinks you are associated with Instagram and especial

The real issue is not the similar domain name but if your use dilutes the value of their name. If a person thinks you are associated with Instagram and especially if you are in the same type of business. As an example Ritz Hotels does not dilute the value of Ritz Crackers. They are clearly in distinct different businesses and one does not dilute the value of the other.