You would undoubtedly have 5+ posts saying "Reserved" show up immediately on every single topic posted in the technical boards.
Hmm... maybe "reserved" posters could get warnings or be kicked out of their campaign as a punishment?
If you add a financial incentive to getting your post in early, then I think that would ultimately decrease the quality of the first few replies. There's already a kind of "traffic jam" at the beginning of some topics (usually questions) with the first few replies trying to compete for merit. I often don't bother to post in topics like that because it would take me too long to do the question any real justice, and I know that by the time I'm finished with my reply there'll already be a bunch of (pretty lazy) "fast" answers that (taken as a whole) cover most of what I was going to say. It would actually be pretty cool if there was a way to call "dibs" on a topic and stop other people from posting "rushed" answers while you work on a comprehensive one.
Makes me wonder whether there's such a thing as an "academic score" for measuring the substance of texts. The idea being, the same university-level standards that are applied against plagiarism currently are used to score a post based on several criteria like originality and informativeness. And people who don't even manage to pass the score get no bonus (and ChatGPT, lacking any emotion at all, would score a zero and get ejected).
For example, in my campaign there is a bonus that goes to the best posters. Although it is quite a manual process, maybe there is some heuristic some researcher has come up with for this in the last 100 years.