Near has been useless to me so far. Sorry.
Maybe for you it's useless but I get Uncharted GA and Treasure Park game goods every day. Also I've seen a steep rise in Vita owners since Black Friday. I just wish more would turn on sharing. But it is fun seeing what others around me are playing.
Oh sorry to be off topic. But to the OP I have seen this before not sure what causes it to happen. Seems like for me it is when PSN is running slowly.