BAWMOAR!
Seriously, no offense, but this isn't really something worth complaining over. I can only imagine the number of "great" replays that have gone completely unnoticed on the replays board. I know personally just about every time I have made a thread that I thought had good stuff in it, it either dies with two comments from people I have never heard of, or it only gets comments after I bump it with more replays...if it gets commented at all.
The fact is, even if you are nuthug, they're just replays and you wont always get all the praise you feel you deserve for them for any number of reasons, the main one being that nobody is as interested in the things you do more anywhere near as much as you are, plus fuck, its a video game man, people come here for fun, not to tell you you are awesome. If that is why you stick around though, you may as well just leave. Until they come up with some system where the game itself will some how strokes your ego for doing good in SP (think achievements based on it, which seems highly unlikely to ever happen) then you will just have to put up with it like the rest of us and be happy that anyone at all stops to look at what you make.
Honestly making threads about is probably not the best way to go about things, as now I want even less to take five minutes out of my life to tell you you did a good job. Sorry if I sound harsh, but really man, bawmoar.