Any kind of gadget can make you look stupid when you are dependent on it, unless you have some disability that makes gadgets necessary.

In your case, don’t be too dependent on spellchecker. You can improve your writing skill too.

It helps if you think of it as a assistant instead of a replacement. Use it but don’t trust it. Double check.

Yeah. I try to proofread, but sometimes I’m in a hurry, or distracted.