Please be your own image host, externals suck..
Sounds like you want a way to hack the forum. This is how the forum was hacked in late 2013 and would likely be very vulnerable to additional hacks.
Oh, and start a bitcointalk wallet so we can all just stay here.. built into the site obviously
Also a bad idea. People should 100% control their private keys. Plus it would cause the forum to be more aggressive in restoring accounts when they are hacked, but it is very difficult to know for sure if an account is in fact hacked or not.
Point 1:
Dude, if I wanted to hack this site, I'd start at the cmts level.. First I'd download running config, then re-up with my prefered enabled password 5 or 7, then I'd just reverse engineer my way into the host, and voila, delete the hosts db. Obviously I'm not malicious. I knew about the image hack when it came out, for at that time, I also used smf.. I moved onto better things, like writing my own forum just for security reasons. Piss off wi your un-substantiated opinions.. I'm pretty sure if you knew who I was, (yes, i am a well known hacker.. WHITE coat that is) then you'd have a good claim to this, but nah..
Point 2:
This is not a bad idea for noobs. I have NEVER even cared about private keys in bitcoin, never mind my countless online wallet's.. as long as i get paid, what's the point? I'm pretty sure Theymos can be trusted, unless you know otherwise?