The most unnerving thing is probably the restriction to the same category. I’ve often used suggested topics on the old forum, but here it’s almost useless.
If you want to get some traction on this, better go to https://www.discourse.org/ register there and mention it straight to the devs as the Manjaro forums use Discourse.
(They’re a very small team and somewhat¹ friendly)
Note 1: They take their own product very seriously and have no sense of humour, so no jokes or light- chatter about their product…
I was under the impression that this has to be a configuration thing, because I grew accustomed to using suggested topics on the previous forum - which had much better suggestiion diversity from all over the place and chose more current topics as well…