The "First Posts" queue is all about helping a new user see how things work here. As such there are only really 3 options for outcomes:
- The answer is great and has no issues at all:
- Looks OK
- There are some content or formatting issues:
- edit it
- There are major issues with the answer or the user is doing something wrong:
- leave a comment telling the user what is wrong
A higher rep user may also be able to vote to delete the post, but the result is the same.
Each review queue has a philosophy, which can be gleaned by looking at what powers you have available in each queue.