Thanks for the feedback. Yes, spell checker is needed and we have it on our site To Do list.
It's actually considered a low priority for our site right now given other things like the current changes we are working on in our Invention Gallery, so please be patient with us if you don't see it instantly.
I asked Roger to make sure that when he finishes the projects he is currently immersed in, we build the spell checker on our site.
I more than anyone here needs it.