Questions, Ideas, Posts in Groups are all listed together under My Discussions. In other words, any topic you started whether under a Q and A sub-section, a Groups sub-section, or an Ideas sub-section are all just Discussions and all are listed in newest to oldest order under My Discussions.
As that 'Comment' by 'Gordon' indicates ...
Such a place ALREADY exists ...
That said ...
All JUMBLED together as ONE ...
NOT even any reference as to whether a "Discussion" is in, "Q and A"; or, "Groups"; or, "Ideas".
And, certainly NO reference as to the, "Category" (for "Q and A"); or, "Group"; or, "Topic" ( for "Ideas").
As an aside ...
How about, consideration, for a place to view "ALL" of OUR, 'Answers'; and/or, "Comments, that we have raised/initiated, NOT being those matters that we raised/initiated ourselves - ie. by Other Users/Patrons.
That would be good.
[ Although, I must admit, that the IMPROVED "Search" feature/function/facility in the Forum is MUCH better ]
Just my thoughts.
In addition to the topics you have originated which are under "My Discussions" as indicated by Gordon above. it is already possible to find the Comments you have posted on other people's topics, but the way to do that is somewhat hidden.
Click on your Profile/icon as in above image posted by Gordon.
Click on your User Name.
Click on Comments.
Why not have Comments listed under "My Discussions" in the image above? It would save an extra click.