Gravatars: Do they only work with comments?

no and yes. to do so you need a post author related gravatar plugin. that’s the only other gravatar plugin i know of. you can just place it anywhere as far asi know.

btw check these threads:

https://www.ads-software.com/support/topic/31271#post-176675
https://www.ads-software.com/support/topic/17348#post-99349

And try to use the search as it will often give you some answers, then you can always come back here after reading through and asking more questions ??

Check this theme and the plugins it uses:

https://chris.coggburn.us/cleanbreeze/

If you look at the sites blogroll at the 14th site listed it uses the same theme with avatars for each post.

Why didn’t I name the site? It’s name could be offensive to many.