Is it possible to ignore an entire thread instead of just a person?
I don't believe you can. You mean the threads that coming up in your personal queue, of new replies? You can mark it as already read. If you have notifications going to your email, that new replies come up, you can unsubscribe from your personal email. You want to take it out of the queue right? not sure. There are a few I want to as well....
Once one puts in their 2 cents, they are done with the thread. so your options are , just read the ones you are interested and just reply , or don't put in your 2 cents worth.
I don't know what else to tell you, buddy!!