To me, it's not really a question if I would leave having my blog itself has quite some value to me aside from any of the post-earnings. The question is more if I would keep up with a daily post routine even on days I'm not up for it and continue to hold and accumulate SP. I'm always flipping between seeing huge long term potential as this new idea could be adopted by the masses and being annoyed by the post2mine mentality where it's all just about the $$ thinking it will never ever work long term. Like you say, the community is really strong here and I have no doubt about the platform surviving. This idea of being able to earn something this way makes many people emotionally invested and really pushes things forward with everyone finding ways to make it all work. The platform certainly has it's flaws though.
I can relate as I often find myself tied to engaging given the opportunity cost of not doing so instead of what I will get out of a post. I think it is a fair balance but it is also what makes it fun for me.