Generally, I don't find it helpful to use shorthand terms to discuss issues, particularly complex and/or divisive ones. The reason for this is that people, biologically I think, interpret codified terms using a detracted view e.g they don't really know what you mean when you 'pro-vax' so they must fill in the blanks themselves very quickly to continue the conversation. Unfortunately this rapidly leads to poor communication.

This phenomenon appears in all divisive issues: male/female, pro-choice/con, republican/democrat, etc. As soon as you use the term the listener conjures up what they think it means and attached a strong definitive position to it. By simply not using the terms you can have a much better discussion.