If you’re about to launch something new to your community (new platform, feature, product, etc..), you could try telling members how great it is.
This sets high expectations and you’re going to blend in with everyone else also declaring their new project is amazing.
A better approach is to ask your community to help make it amazing.
This lets members point out flaws without dumping on the project. It gives members a sense of influence and ownership. It increases the number of members who will promote the project at the end.
A tiny difference in words creates a big difference in mindset.