An ex-guildy who has since quit the game did just that, but he put 20,000g in the window and then sat at his computer pressing the space bar every minute or so while watching TV.
He said the guy finally closed the window 2 hours later.


50 for an ignore list is not too bad, it all depends on how often you purge your ignore list.
If you just let it grow, it will fill up.
At one point I had the addon which allowed you to ignore as many as you wanted, and I ignored all the "anal" trade comments along with the repeated item link for the same item, the engineer made BC-era rifle was annoying for 2 months on my server.