Many people have links in sigs. As the mods come upon them, will they be asked to remove them? Yes, if they are against guidelines.

Is an Etsy link that I don't profit from allowed? It is best to share the link via pm so there is no confusion.

There is a whole thread advertising sales and codes. Isn't that considered advertising? In this context, it is not. It sharing of information just as showing a pair of shoes or purse that you may have purchased.

As the rules and guidelines cannot anticipate every scenario, there may be situations that will need to be handled on a case by case basis.