Simply delete the post you made and they will stop showing up.
That's a bad solution. Nothing worse than reading through a thread with missing images or quotes to dead posts.
Not to mention this aspect.
I think what kills you is if someone replies to your post, too. Though I'm not 100% sure as it's a complete pain to search for specific posts in threads which are 50+ pages.
It's not a good solution, but it's what we've had to do so far. This request has been made multiple times in the past so maybe I'm just pessimistic that something will be done about it.
In the mean time, I find it easier to search my own post history for the thread than to search the thread history for my post, if that makes sense.