It seems to be something forumotion has in place now?
I am not sure we will have to ask the godfather to see if he knows if this is something forumotion has in place now or is just a bug,
But i have tested with imageshack, tinypic and photobucket, and they all do what you are saying.
To where if i use a traditional image host like, Imagebam, or imagebeam, Then their thumbnails codes still redirect to the image hosting page.. So the only thing i can figure is that forumotion now have this in place for certain large image host?
(Traditional in the sense) That image host like imagebam or imagebeam are host to where you would upload whole galleries and provide clickable thumb codes along with all other standard code options..
Now forumotions image host servimg thumbbnail will redirect to servimg page as well.
But keep in mind servimg is forumotions image hosting.
And this has nothing to do with whether you are a guest, member or the image re-size options.
So my guess is this is something forumotion now has in place, Kind of like when they added the redirection to adfly for certain file hosting links that are posted.
So whats your alternative options?
If you are set on using photobucket, Then just add the img tag code and the direct link under it, This way members can see the image thumb and will still be able to click on the direct link.
Or just find other image host that will redirect to the host page.
However, we will still have to ask the godfather to confirm if this is something forumotion has in place and not some sort of bug, But by me testing on other image host such as imagebam and imagebeam, it pretty much rules out that this is not a bug and just something forumotion now has in place.