Even before the existence of Novusphere full nodes (so decentralization) people will be able to index whatever files, images, videos, etc. they want on the platform so long as it is compliant with the law. If we receive any DMCA take down notices for any content it will be pulled from the index as before centralization, we are legally obligated to curate content.

Before the 2nd part of the crowdfund a variety of SFSIs (refer to OP terminology) will be available and show how searching and rendering will work and continue to work even after decentralization.