User blog comment:Cristina7/Introducing Discussions, a New Platform For Engaging Your Community/@comment-3398493-20160908210805/@comment-24722583-20160908212424

Almost every Wikia Feature is prone to having users make silly or useless posts.

As said in the second to last sentence of this blog post, "Discussions will continue to evolve in the coming months and we'd love your feedback throughout the entire process."

Discussions is bound to change, so maybe your ideas will be considered. Nothing is totally set in stone at the moment.

But I see your points though, and I for one would like to use wiki-text in these posts. That could possibly solve your "no highlighting" issue.