I love the idea of having an autocaster built into the rod. That's one less thing i have to worry about when i'm fishing. I use a gesture now as a matter of conveniance, but usually I'm too busy chatting to reset it when it runs out. That's why i have it play a song at the end to remind me. I don't fish long in an area when i'm alone, so the social aspect of the game is the biggest draw for me.
As for the security hole... and this should be a no-brainer... plug it! I'm sure that when micro$oft plugs a security hole there are lots of people (hackers) who get upset when their tools quit working... too bad.
I love this game AND the people who created it, so whatever you decide, I'll still be here fishing, building customs, and helping out however I can.