I dont really like the new pack system as I saw the whole purpose of the system as a way to avoid resource spamming which its currently not doing, my suggestion.
Dont make the separate models or icons visible in the model or icon section (browsing index), only make them visible when searched for, this is to prevent spamming and such. (when uploaded resources for pack, set them to "packing" so they dont show up until separately on the browse index.)