I am also one of these non-native speakers of English.
But if I don't know a word, I reach for one of these fine inventions called dictionary. I know I am a really bad speller but I will never ask for spellchecking, because I can do that job with my spell-checker. Therefore, a <spellchecking> button would actually mean Heya! I was too lazzy to do speelchecking, please could you do it for me? No, I do not want to ask for such a feature.

While spellchecking and looking up words I don't know, can be done easily by myself, I feel quit uneasy when it comes to word usage, grammar, wordorder, etc. pp. . Especially if I was going to write longer prose like a tutorial or book review which also will have a wider audience than this little node, it would be nice if there were some volonteer editors who could check my writings.

And yes, like many non native speakers of English I feel quit ashamed for my bad English. (Especially if fellow countymen of mine look at me from behind. Definitly a psychological problem for many of us non native speakers.)

Hanamaki