Oh for sure you are not the only one with a lot of redirects to a single topic

The friendly
@Badger50 had helped me in the past, to cross-post my
Galaxy S4 Collection & Guides to all the variants of it....and they were a lot! But any mod could help with this.
You could also save some time from mods and do it alone, by creating threads to each of the Pixel devices and redirect them to your main thread.
Then ask mods to close these threads, so any conversation which will happen, to be on your main thread-topic and not being split..
Haha, good to know as I was a little worried what I was asking for might have been kinda unreasonable.

For some reason I had it in my head that a redirect link existed as a separate object from a thread, but I only just remembered how one moderation tool that forums typically have is to close and merge a thread with another, with an option of creating a redirect link to the merged thread. (Like many I rarely visit forums compared to the past). Unless there happened to be a "Create link to" posting option which I don't think I've ever seen a forum have, I guess the only way is to create and then close and redirect the threads? Just one of the cumbersome reasons why the internet outgrew forums I guess (though as a side note, I personally view Discourse to be what would happen if you created a forum software but combine it with the things that made other discussion platforms popular. It's just too bad that it still won't ever be able to reach the heights it once used to).
Anyway, I went ahead and created the topics, self-reporting as I went. Thanks
@Badger50 for diligently seeing to them. The only downside was how many times I broke the matrix by continually hitting the limit for creating new topics in quick succession.

You know actually, perhaps having separate topics would have been better as people might have preferred to want to talk abut how it was on their device specifically. Ah well. They can still do it in the one shared topic, and create separate threads when new builds come out.