I don't see how your post relates to the title.
You're not the only member who has felt as you do. You don't have to give anyone advice about ctb'ing, but it's also bad form to not honor others' right and ability to choose for themselves, and to try to talk them out if it (outright discouraging is as much against the rules as encouraging). We're all (ostensibly) adults here, so if it's okay for you, it's okay for everyone else. It's not an easy subject, it's understandable if you have discomfort around it.