If its a data miner, I still don't want it, nor do I need it. If you're dependant upon a spell-checker for regular use, you might as well quit at life. Also, if you can't remember your own address, you also need help. Auto-link? Whats that, so I can bash it?
Quit life because you're bad at spelling? Wow, you're dumb (just kidding, but that was a pretty stupid comment).
Joe, it saves time. You click a button and it fills it in for you. Christ. Read before you post.
Google toolbar rox, kthxbai.
And at your last comment: You can
select if you want to to collect data about the pages you visit. It's not a forced thing. There is
no malicious intent for this software. If you're bashing on Google in any way, you should be shot. Seriously. Shot.