Hello Bok,

NFS has up to 5 badges - one Overall by credit, 3 subprojects by credit and a temproraily badge based on RAC. It's fine for me to leave out the RAC badge.
In the banner on user combined all four other badges are shown, but on users project pages NFS@home only the sub-project badges are shown - the overall badge is missing.
(At least for me, but I had the credits for silver overall badge already when they introduced their badges.)