I love Supernatural but at times the writers seem lazy to me...there are so many conflicts and inconsistencies. In season 9 Dean the boys say that you can't change the past even a little bit or it has a ripple effect but in an earlier season, Dean asks Castiel to erase the memory of his girlfriend and her son which would mean that everyone he interacted with during the year he spent with them would have had to have their memories changed and every experience people had with Dean during that year would have had to change...so???? do others find this frustrating. I also hate it when they permanently kill off characters. I really like the second Meg, adored Bobby, wish Garth was in every episode etc