I had some free time to mess with this and I think I've figured out that it's connected to the trailing /unread on the URL. I also think it's connected to the time since you last viewed the thread because I'll be damned if it works fine on subsequent tries. But that might indicate image proxy issue.
Since you can't "see" this without waiting long enough for something to reset, I'll have to describe what I am seeing.
I have a multi-page thread, say, 9 pages. On page 7, the 2nd post is picture heavy. Someone quoted a post further down on that page (say, the 10th post on the pate) and the post with the quoted section is on page 8 for instance. After some time, I click the little up arrow in the quote box of the post on page 8 to go back to the original quoted post on page 7.
What happens, the first time I do this, is that the "landing" ends up being smack in the middle of one of the pictures in the 2nd post on page 7. But it's always the exact same spot in that post every time this happens. I know because this is a particular post that I had to keep going back to now and then in preparation for an event we were having. Every time I went to it, it put me in a weird place and I had to scroll down quite a ways (approximately the same # of pixels as the sum total height of all the photos in that thread if I had to guess) in order to get to the post that the quote-link should have taken me to.
Now, immediately I go back to the post on Page 8 where the quote is located and click it again. This time, and every subsequent time, it takes me directly to the landing point I would expect - with the permalink at the top right corner of the page.
This all above was on Firefox which is what I normally use.
Now I switch to Chrome and log into my account. I go to the same page 8 post, click the quote link, and it takes me to Page 7 in the middle of the photo. Nearly the same spot. Now here's the really odd thing, when I resize that window, the anchor point moves. I have 2 monitors so I wanted to drag it over to my 2nd monitor and see if anything changed and it did. Without scrolling the mouse wheel or dragging the slider at all, when I resize the window is jumps all around. When I go back to the original size window, it goes back to the (incorrect) loading point. It's really weird.
Then I go back to page 8 with the quoted post link and click it again...this time it lands me at a different point! Next time I try, it lands me at the picture again (same as first try). A few tries later, it lands me at the target post where it should. Subsequent tries put it in the middle of the photo again (same spot every time). So Chrome is more random, so now that points to a browser issue.
But again I go back to this: I don't see this issue ever happening on several other "big board" reefkeeping sites that I frequent, everything on those sites works like clockwork no matter what browser I'm using, and no matter how long it's been since I visited a certain thread, and no matter how long it's been since I looked at a previous page of that thread that was picture heavy. Everything works exactly at expected all the time every time. Except my sites.
Someone else has got to have seen this effect.
