Is it possible to change my username?
Yes. It is possible to change your username after you create it. This includes modifying your current username in any way. You can chage your username here How do I create a community?
No you can not create a community. However you can request a new community on this thread
Why aren't my posts showing up?
Your post likely got caught in our spam filter, or was removed by a moderator of that community. You should contact the mod team to ask them about it.
There are a few reasons why this could be, but first of all, make sure that you are looking at the correct community. Also make sure you follow community guidelines while posting.
Ednsquare also has a spam filter designed to detect spam posts and automatically remove them. However, legitimate posts are often caught by the filter.
What does the "report" button do?
The report button, shown on all posts and comments when you’re logged in, is an anonymous way to alert a community’s moderators to something that violates the community rules or Content Policy.
The more people that report an issue, the more likely some action will be taken. If enough people report something, Ednsquare site administrators (employees) will be informed.