@Nostrad - Considering your sidebar issue has nothing to do with SS and is a CSS/html issue I dont think you can use that as evidence of SS needing to 'grow up'.
@double-a-ron - EE is a paid solution, cositng $250 per install, if they didnt have a better support level at that price it would not be able to compete. To put it in perspective, if SS had $250 for just 10% of it's downloads (15,000) it would have an extra $3.7 MILLION to provide support. And that's not even going near the modules side of things ($100 for a forum?). I say given those figures SS is doing rather well. And having looked at EE, I find the interface doesn't even come close to SS's for ease of use and logical layout.
Yes, there are many challenges that need to be overcome, documentation and ticket resolution being 2 major ones, but given it's age and number of active community members I'd say SS is looking extremely competative. If you compare it to other new Opensource CMS's (Conrete 5 being a good example), SS has a good level of documentation and support. It's nowhere near perfect, and I know from experience how frustrating it can be when you can't find something that should be simple, but things are getting better, the forums are now a lot more active than they were less than a year ago and there should be some new official docs being released soon, along with the book. And of course there is [url=http://www.ssbits.com]SSbits.com[/url] which I hope to slowly build into a reference for all those easy-but-hard-to-find issues.
SS is growing up, slowly but surely and sooner or later it may well be in a position to competing with the big boys on every level.