First, Stephen King is right… for Stephen King. He may or may not be right for others. He certainly isn’t right for me. (As for the comments becoming too polite over time… well, never in any group I’ve seen.)
I’ve been in a couple of long lasting writers groups, and several of us just started a new one. There are numerous benefits of such groups and several pitfalls. These will be different for each person and you can only learn by experience which are which for you.
For non-professional writers, these groups can be extremely useful. They provide incentive to write, along with a structure and deadline pressures, and then there is always the warm glow of being with others with similar interests. If the purpose of the group is to develop professionals, then a group can kick a lot of the nonsense out a person very quickly. If there are professionals in the group, a good deal of critical information can be imparted, from proper manuscript structure to proper use of gerunds. You can’t teach creativity just as you can’t teach somebody to be a race car driver. But a driver’s ed course can be a lifesaver, and certainly will get you to function with minimal competence behind the wheel much faster than going it alone.
Interestingly, much of this is also true for professionals in a group. Writers can be solitary and lonely and meeting with others regularly is attractive to a great many writers. Having others look at your manuscripts with a fresh eye, getting an early opinion on whether an experiment is working, or enlisting others to get past a roadblock is useful even for pros.
Pitfalls are many and varied, to be sure. Getting the right mix of personalities is tricky and seldom attained. Over time you should learn who is going to be so positive as to be useless and who is going to be so negative as to be useless, but that is time thoroughly wasted. Most groups deal with only one type of fiction - few people are knowledgeable enough about several genres to critique them all, and even fewer know the professional requirements of more than one genre (and mainstream is a genre). One poisonous personality can kill a whole group. A group with too many non-pros may not understand enough to give any useful feedback; a group with only one pro may become dependent on that person and write to that style in hopes of getting good praise. Dealing with novels is always tricky: few people are willing to critique a whole novel, but anything less is hard to work with since so much of criticism requires a knowledge of the whole.
JSexton seems to be doing well in creating a culture for his group. Each group that lasts develops its own personality and its own rules and exceptions. One warning, though: He mentions Clarion (a long-standing summer program for aspiring science fiction writers). Bear in mind that Clarion critiques are traditionally much harder and more negative than are good for long-term friendships. All of us want positive feedback. Understanding what is right about a story and being able to articulate something more than “this is good” is a skill more valuable than merely being able to criticize.
Just start with reading one another’s manuscripts and find out for yourselves exactly how well you understand what works and what doesn’t about the stories and why. This is much, much harder than it appears at first. Critiquing is a skill like any other. Some people (and some professionals) are much better at it than others. Give the group some time to create a personality, and work out tentative rules by mutual consent, modifying them when you have some experience. The people, the format, the number of times you meet, the type of stories you critique – all may have to change over time for the group to be successful. It may not be. If so, you’ll learn for your next group. Most of us are serial groupers if the first one works.
Clarion West 1972