Having been through a few too many computer hard drive destructions (before the option of storing it unseen on the cloud became a serious option) I tend to want to throw something up as soon as it's even reasonably in order. Not for the hit count, because I'm too new at this to have made that mental connection yet. It's about making sure I get that stuff out to folks before I somehow lose track of that one bit of work.
Also, I may have ideas of where the next bit ought to go, but I've no guarantees it's going to cooperate and cough up something acceptable for the next bit. (Yeah, the worst kind of WIP writer for some readers, I understand.) I'm big on revisions to catch stuff even when I've had great beta readers.
I've consistently edited (after posting) for typos and small-scale bits of clarity when I notice a problem, and nobody seems to object to that.
What I'm wondering: If you give a warning note for it, would it be okay with the community to fix larger problems?
Is anybody going to hate it if you edit earlier chapters when you've run into snags that need changing?
It's much more work for you to go back and rethink things and figure out how to tweak it, but nobody seems to have a problem with the idea of second or third edition edits in print, just with the actual bowdlerization or hack jobs that sometimes get done.
And yeah, you may notice I've even edited this post several times to extend ideas and catch typos...