Journeyed there and back again
I have also personally blacklisted few authors like Sanderson and N.K. Jemisin, with very slight chance of reading anything by them. They have put me of that much with what I have read from them.
As far as avoiding or picking books based on summary - I do this all the time. I'm not a steampunk guy and certain things will turn me off so I avoid them. But to defend Kenubrion a bit, some people that have used summaries to avoid a book have also gone on to heavily criticize that book. That makes no sense to me. You can't heavily criticize a book and an author on second hand information imo.