it appears that fewer relays are responding to queries for you. i had about 69 unresponsive ones when i tested just now. of those that did respond, 115 had my post and 168 did not. but you don't really *need* to be on that many relays. some relays are far more widespread than others.
Discussion
if you look at the output of Nosy, another tool i make, you can see that certain relays are more common than others. they're usually a bit more reliable as well. relays are run by random volunteers. not all of them are going to work properly all of the time.