Coming late to this thread: yes, it's important to welcome new users and to support them and I agree with Derek that a flag of some sort for a first post would encourage existing users to provide feedback. Well done Derek for keeping us reminded of that.
Educational use is at the heart of this site and one of the important features for me is that responses are provided for photos that might not pass muster on photo sharing sites - how wonderful that folks can achieve such standards, but often examining a 'snap' helps someone on this site to connect with nature in a meaningful way. That all points to the 'general public'!
For me too, one site is unlikely to do it all, a bit of further research is one of the joys! Using keys is a skill in itself in my view, and the necessary vocabulary can be a barrier depending on stage and experience. Worth persevering!
I dashed off a comment on the Hatching Bugs observation before properly reading D's comment re Changes Tracker.
Janice's recent front page post does include reference to funding bids, so that sounds like potentially good news.