I think a tag is a tag. I know it was put there by mahz so that the smut dogs in 1x1 could let everyone know what they wanted. However, I'm also aware that people are using it for any situation where they want to see people 18+. Which includes everything from dark themes to writing ability. In layman terms, 18+ is a tag that could mean anything. As a result, has lost all of its meaning. Speaking for outside the 1x1 section, as I don't really enjoy that style of RP and don't watch that section.

As someone who occasionally enjoys gritty stories but doesn't like smut, yes, I think there could be a smut tag that more or less gets the point across. That wouldn't really fix the problem with 18+ being too broad however.