@Teemberland To my knowledge, not at the topic level. Post level only.
On related note: I don't think this would be a good idea. I DO, however, believe that revisiting the algo by which thread popularity is tabulated could use some revision. Prime among which, would be to in some way take into account the number (and frequency/periodicity?) of upvotes received for posts under the thread, as on longer running threads most folks do not bother to scroll to top and upvote the starter post from the OP.
Thanks! I do like what you said about thread popularity.