Remember, you're allowed to make anything you want, pursue any project you desire, write in any which way you believe works best for you, and nobody can tell you otherwise.
Of course, not all things work out, but you're still free to pursue anything you want. For example, everything has a target audience and community demographics: you're free to pursue whatever you want, but just remember that some things are harder to market to people than others. In this case, you'll have to go the extra mile to find your niche audience. Just because something is harder to market doesn't mean you can't pursue it.
Sometimes you'll make something that doesn't fit the standards or rules of the group you're submitting to. In this case, you're still free to pursue whatever you want, but outside of that group. If you insist on getting your art into that group, it's like fitting a square peg in a round hole: it won't fit. Instead, find a square hole, i.e. find the group that will accept it. Just because some groups won't accept your art doesn't mean you can't pursue it on your own.
Sometimes you'll be on a group project and you'll have an idea that clashes with the group. In this case, you must understand that a group is the sum of the ideas of everyone in it, not just yours. Let the group project's ideas be that of the group's, and let yours be yours. You can still submit ideas, but the whole group gets the final say. Just because a group won't accept your ideas doesn't mean you can't pursue your own projects by yourself.
Sometimes people will critique your style of writing or direction. There are dozens of schools of writing, but they all lean towards the idea of how to entertain the audience. How you choose to entertain people will be different from others. Art is subjective: not everyone will agree on what's good or bad, what makes what work, or why. In this case, find what's best for you and do it. If your skills aren't up to snuff and people are constantly criticizing you, just practice, practice, practice. Look at those 1-year progression charts, and you'll see what experience can help you do.
You're free to do anything. Sure, not everyone's going to like it, but who are they to tell you what you can or can't do? Everything has a niche audience, everything had its place, and if there is none, you can make it! Critics can't stop you, groups can't stop you, admins can't stop you, nobody can stop you but yourself. You have a right to pursue whatever project you desire. Sure, there are moral limits (things that threaten people or are hideously NSFW to the point of disgusting the majority of people), but beyond that, nobody has a right to tell you what you can or cannot do. If anyone tries to tell you that an individual or group is holding them back from making whatever they want, or tries to scare you into thinking you can't do anything because of somebody else, they are wrong.
So, go out and do what you want. Unless what you're doing is breaking the rules, inciting violence/drama, or disgusts the general public, nobody is allowed to stop you.