My worst Trek books? How do I mention them without pissing the respective writers to those books...
In general, and for what it's worth, I like to think that most writers aren't going to get pissed off by a bad review, as long as the poster is reviewing the work and not the writer. -
I can't speak for every author, but I figure the books themselves are fair game. You want to critique the plot, the characters, the writing? Have at it. I wouldn't hang out in a review thread if I couldn't cope with the occasional bad review. You can't expect to please everyone.
The only reviews that stick in my craw are the ones that venture beyond the words on the page to impugn my motives, my character, my fan cred, etc.
"Cox clearly knocked this one out for the money."
"Cox has obviously never watched STAR TREK."
"Cox obviously hates Scotty."
"Cox is obviously a basement-dwelling nerd with no life."
Etc.
Pick apart the books all you want, but don't presume to read my mind.