I found your post with user rsposnes in the macOS Sequoia section here:
Creating a two page tiff document.
Under your avatar in the upper right of each forum page is "My Subscriptions," Apple's unintuitive way to say "My forum activity":

That brings up this set of pages showin yor activity:
https://discussions.apple.com/profile/Bob1177/subscriptions
👉🏻 However...
...for the last week, the forum software have been buggier than a "Starship Troopers" movie, and Subscriptions where among the affected functions. It works this morning—for now— and the moderators are well aware of the issues.
A tip for viewing your Subscriptions: At top of the list is a filter function:

For some reason it defaults to "Following." When you search for content you created, either as a question or a response, change the filter to "Authored" or Participated" to reduced the clutter.