We have had conversations over the years about the use of images, jokes and also emojis. Just thought I would bring it up again so people are aware.
Some people have issues with emojis as they find them hard to understand or they are visually impaired and their screen readers cannot read them at all. So while we have no rules about them I would just like to remind people that less is definity more.
Here is a previous conversation about it you may find interesting.