maybe there is already a function for this and i am just uninformed, in which case feel free to school me, though i was thinking that there is no little button that lets you look at all posts you have put up, or even better yet all posts that you have posted on as a reply also, and a way to divide between them, this way one could easily check on topics that they thought interesting that maybe are not easily findable any longer....

Right end of beige divider directly above the OP go Options > Watch this topic. This puts the thread in My Profile.
Access it through My Profile > Subscriptions

Re all one's posts, use search.

Best,
L