is nigh on impossible.
There are so many forums now, that if one is a regular poster, keeping track of our own posts from forum to forum is, and always has been, incredibly difficult.
Forum post search is a weak part of this site, in my humble opinion, and needs some work to improve it.
We should be able to have a click, chooses forum, my posts in this forum (by recent, or not, etc.)...... ??