Please try not to get into debates of whether you should have the issue fixed or not, the idea of the thread is to provide a very clear idea for Bethesda of the quantity of and type of projects affected so that THEY can decide the merits of a fix or not.
I do not geting into debates of whether the issues should be fixed or not. I'm debating the significance of anouncements that a mod is on hold because of issues that cannot yet affect a mod of the claimed size, and I'm debating the sense of discussing two completely different issues here just because they affect you right now.
The navmeshes are one of many issues that affect most of us and actually are minor ones because they can be worked around right now. If your mod is on hold, then this may have been the final straw but certainly not the main reason for stopping to work on that project. Of course the bug will be fixed, gamesas wants us to use the Steam Workshop so we need to be able to release ESPs with navmeshes, if your mod is done but can't be released because of this, then it's delayed because of this issue, not "on hold".
Worldspaces being limited to an area not much larger than 130% of Skyrim's accessible size are a completely different thing. If it indeed is just a minor bug then it may be fixed, but chances are good that it's an accepted limitation or even an optimization measure. The wise choice is to think about alternatives right now, and those are: cancelling the project, setting it on hold until there is an official statement, and starting to work right now and adjusting later. It's up to you whether you decide to adjust, abandon, protest or pout, but if you proceed to announce your decision, be prepared that others comment on it one way or the other.
But what about all the other issues? LOD? Heightmaps? Those are more serious than the Navmeshes and affect more people than the Worldspaces yet they don't seem to affect you personally. I'm fine with the bugs being fixed, but when your giant worldspaces turn out to be an extra feature, I'd rather want bugs fixed that affect more of us, or maybe a bit of documentation or even tools for the Skyrim NIfs so that one day it will even be possible to fill even one 128x128 worldspace with content that doesn't seem to be copypasted right out of Skyrim (the region).
We are the spoiled brats among the game-modders, most communities need to reverse-engineer their games and write their own tools. Where modding other games is all about improvisation and compromises, we think we have a right to be provided with all the tools we need to realize the mod we have in mind, exactly as we imagine it. And how do we justify that claim? Either by naivete ("I've paid my hard-earned 60 bucks for that game!") or by arrogance ("Thanks to my mod the game will sell like hot cakes for decades to come"). Truth is, we're just one of gamesas's pet-projects, the vast majority of gamers doesn't know or care about modding. We may get what we want as long as the effort to keep us happy stays within reasonable limits, if we proceed to run down the game because we didn't get all the toys we wanted, we might get no toys at all next time.
As for your thread: the more the topic is discussed, the more attention it wil get. It's very unlikely that there will be 200 posts with large mod projects that are on hold, but with a bit of discussion, the thread may stay on top until the post limit hits. Discussions usually require different opinions.