Ginny, we have given you warning after warning to stop posting on your message wall. From here on out, you're blocked from editing your wall, and if you message us on other wikis, your block will extend. Sit out the ban like any other user.
The first instance on 7 Aug 2015 sure seems mysterious. Your last edit prior to that on 4 Aug 2015 was saying "thanks" on a blog.
The 15 July 2015 chat mod rights being rescinded 13 Aug 2015 makes me wonder if it had something to do with something in the chats?
This which probably means there is no record to check since as far as I'm aware chatrooms do not have history logs.
Given that was rescinded the next day, and another wasn't instated until 1 October 2015, perhaps the first instance was not important?
I imagine that instance (initially 6 months) was something pertaining to the 30 September 2015 edits, probably Thread:28176 involving requesting local admins to try and intervene over at the Disney wiki is my guess?
Based on that log it was a 12-month ban by JeremyCreek.
This was rescinded the following day by Alex, then reinstated the day after that by SilverFlight who then added on the restriction of inability to use the talk page.
2 months later, GrayWolf inexplicably changed this to indefinite, then June 2016 Bluttopia removed it. The last action being 9 Oct 2016 with a very moderate intervention by Alex of 3>7 days involving compliance with regulations with some note on how things were being interpreted.
I think the ironic thing about this is that the block lasted 3 years longer on the LK wiki than it did on the Disney wiki where it began.
Community.Fandom or Special:Contact would probably be better options for airing grievances as I think that is less likely to annoy local administration. In cases where one does want advice, it would probably work better just to lightly mention the topic and those who want to advise would probably volunteer it, rather than asking directly which some take as offensive.