Shotgun house is a featured article meaning that it went through a rigorous process of evaluation I doubt that there are any blatant copyright violations in it I am afraid that your personal experience in the field has no bearing on the matter and would remind you of our policy on original research Nevertheless I assume your issue with the article is valid in some respect and because I know from nothing about this subject I would encourage you to copy and paste what you typed above into a new section on the articles talk page which you can do by clicking this link There you can discuss this issue with the contributors who brought it to FA status in the first place Thank you