I’ve also added a #reddit hashtags to all posts to add a third way to block these bots. You can mute the hashtag. Alternatively if you like the pictures but don’t like a particular brand we post you can mute just those subreddit hashtags like #rPorsche and #rVolvo without blocking people posting with #Porsche or #Volvo.
The picture bot only posts pictures in the #1 spot to keep down the volume and quality of posts.