Solved! Go to Solution.
So I ended up figuring this issue out. When I installed the ArcObjects SDK one of the samples it installed was called "AddInEditorExtension." Even though this add-in was not installed it ArcMap acted as if it was. I actually had to go IN to the code and comment out the System.Windows.Forms.MessageBox.Show("Valid Feature"); inside of void Events_OnCreateChangeFeature(ESRI.ArcGIS.Geodatabase.IObject obj), because no matter what I did the message showed, even after I forcefully added the add-in and then removed it again.