If you upvote the GP's coment, you can find it that way too. If you go to your account page (by clicking your username in the upper right on the page), there's be links that say "upvoted submissions / comments", which will provide the full list of what you've voted on previously.
If you upvote the GP's coment, you can find it that way too. If you go to your account page (by clicking your username in the upper right on the page), there's be links that say "upvoted submissions / comments", which will provide the full list of what you've voted on previously.