I am always super aware of what I post for critique.

It's probably not a good idea to post designs for critique in open forums if you are developing sensitive sites, or working with sensitive clients. If you ever do, then any negative comments about your work can backfire big-time if the client see's it. If you do want critique for these type of clients then I suggest you host the trial concepts on a free server and you don't put anything in text or links referring to your client.