La'ra pretty much hit it on the head, Josh. Not sure what else I can say that he didn't, but I'll try and come up with something.
I've been a member of this community for about five years now, give or take the occasional hiatus. I've been writing stories here for nearly all of that time. (Now that I think about it, I think only Kadh and Blyre are the only active/semi-active writers who have been here longer.) In that time, I've never regretted posting a story here for others to read. Some of my old stuff, from when I first started, was really bad, too-- it's a good thing I no longer have it on my hard drive anyway, because I wouldn't touch it now with a ten foot pole. And believe you me, I got ripped pretty badly a couple times, back when I was in a cooperative writing universe with some other authors, for some errors in storytelling judgment.
Since then, however, the atmosphere here has been nothing but supportive. Everyone here remembers what it was like being a novice writer, posting their first story for others to see, and no one here will be anything but supportive. (Wait until you get some experience, and people actually start expecting certain things from you-- that's when you start getting ripped.
) As for grammatics- you won't find anyone here who disagrees with you. It's a lot harder to enjoy a story when it's riddled with typos and grammatical errors. Heck, almost every new chapter of anything of mine, I run by S'Tasik to make sure there are no such errors in the text. He does find one occasionally, although it's mostly formatting errors. When you use bold/italics as much as I do, you're bound to make a few of those here or there, and board code errors can make a story even harder to enjoy than typos.
What I'm saying is that all of us would like to see you stay. We'd love to see a new face around here, especially one with new work to share. I promise, you'll get nothing but constructive criticisms from me and just about everyone else on this board. Heck, if your stuff's good enough, you might even get the coveted Grim Reaper "GIMME MORE" post!
Sorry if I rambled, there was a lot I was trying to say in a short post.