This will prevent the usual de-duplication of the posts, thereby preventing the biggest post from cannibalizing the upvotes from the rest
There should probably be an easy way to upvote the crossposts without visiting each one
I filed an issue on Github for this: https://github.com/LemmyNet/lemmy-ui/issues/2825
Fixed the community link for you: !Randomactsofgaming@lemm.ee