If your product is something the users will genuinely want and find very useful, and you present it as a member of the community who decided to make it for the community's benefit, people will be thrilled generally.
If you show up as an outsider, or with a product that either isn't useful or isn't unique/new you will be seen as the shill that you are.
If you show up as an outsider, or with a product that either isn't useful or isn't unique/new you will be seen as the shill that you are.