On the part elaborating on how the response could affect anyone and not just the newer users, I totally agree with that. However, where you mentioned not coming here for paying people to do the work, I have a few things I'd like to touch on relating to it
There's paid collaboration requests made on here.. from newbies to the forums? Probably not, they're in the very small minority, but they do exist. If a guy with a lot of spare money and an idea for comic was asking for a place to find an artist, I wouldn't hesitate to send 'em here if they didn't know about this place. Except that's certainly not the usual way things go. Unpaid offers are the norm
Take me for example, I made one of these awful unpaid "visionary thinker" posts back on Webtoons over a year ago. For the little attention that it got, there were a few that ridiculed me for not being prepared enough for my epic and one person directed me here (I'd tag the kind older lady, but I don't wanna drag her into this drama lol)
In any case, I was new to this, and I needed better examples and more potential outreach, so she pointed me here. I feel like that's how a lot of new users find this place? I could be wrong. But like, I can see someone else having that same exact situation and them just seeing unpaid collab posts being made and they're like cool, I can ask here too. And bam, without reading the room, they ask what they want without reevaluating what went wrong before.
The little pop-up telling you what the topic is similar to is nice and all, but for collabs specifically?? Assuming they click the Collab category for their post first, I think it'd be better to link directly to the most-linked-to posts regarding how detailed one's collab request should be.. just an idea though