...in the case of a print mag, adding video "articles" to its online presence offers some challenges for sure, but also many opportunities.
The video channel would not need to be forum-like, posting user videos or even comments, although it likely would receive comments. The moderation aspect of that model is significant.
I view it as a way to "tighten" the relationship, giving voices and faces to reviewers. Clearly, not all reviewers would be comfortable with that, but the old guys can't stay forever in the past. BTW, full disclosure: I'm 64.
The value-add is more dimensionality of experience. Unboxing vids. In-room vids. Technical vids. All adding site stickiness, value to manufacturers, and secondarily, value to dealers, with the ability to develop tools to act as a conduit directly to dealers.
I did this in another market-space in the 90s, driving potential customers from web to dealers. That helps keep the mags relevant in print and online. Transcending/bridging media channels is important to remain relevant to modern users, IMO.