Hey,
I don't know if this is already reported: I've automatically subscribed a topic on a usertalkpage de:Benutzer_Diskussion:Toni_Müller#Wikipedia-Aktuelles_(40._Kalenderwoche) with my reply. As this was a massmessage, there are other topics with the same headline. Today two users removed the topic form their talkpage ([https://de.wikipedia.org/w/index.php?title=Benutzer_Diskussion:Hyperdieter&oldid=prev&diff=237913182] and I got a notification about the removal, although I've only subscribed this one on Toni Müllers page. An Special:TopicSubscriptions it shows the correct page, but on every usertalk where this headline occurs the "subscribe"-button is activated