/Satoshi:31.0.0/ peers with no service flags and protocol 70015 pushed transactions, then stopped together on Oct 18

Observations
11

As it also touches this post, I have found /txbroadcast:0.1/ that seems to act similarly as /Sat0shi:31.0.0/ and /Satoshi:31.0.0/ + 70015, it appeared a bit before Sat0shi. More details on #198.