User blog comment:Cristina7/Introducing Discussions, a New Platform For Engaging Your Community/@comment-4129195-20160908183806

Well, I have been on the Discussions feature on one of the Wikias, for about more than 4 months.

Pros:
 * More people coming in. A few of them even edit the articles frequently.
 * To compete with our "rivals", so to speak.
 * Much easier to discuss with other people. A lot of people talk about all sorts of topics on there. Not the case without the feature.
 * When placing a link to something rather important, a "box" appears with the first image being displayed, marking even a greater importance of the comment.

Cons:
 * A lot of people write in foreign languages and is still a problem. The only solution is to delete such comments, but there is nothing else to do to prevent such comments.
 * Not much customization. Also, wikitext is prohibited.
 * You would like to warn a user if they did something bad. It's basically impossible to do that, since talk pages do not work (no notification is gained while being there), and by writing the warning as comment, well, who says they'll read it?
 * There is no option to post a sticky comment; something you wish that all people to read, but it gets pushed down by new comments. The only thing to do is just ask people to upvote it, but it is only temporary.
 * Report button is heavily abused. You'd think when the first time a comment gets approved, there wouldn't be any more reports. Yet they do. Even people that are blocked could still report it. Eeesh.
 * When deleting the base comment, any other reply that was reported is still marked as reported and the flag has to be removed manually.

There's probably other stuff that I have to think of. Still, it is said the feature is still in beta. Though, as some people said, this is much more different than forums and doesn't have to be fused together.

Another note is that the feature can be obtained as an app through Google Play and App Store. I'd guess if it wasn't for that, there wouldn't be that many people today.