Good question, Adam!
CObirds has a set of sensible guidelines, called "Rules of the Road".
They promote courtesy, comity and communication on CFO's CObirds, which is such a boon to us birders.
David Suddjian is the current CObirds moderator and will likely correct or improve this response.
The pertinent section reads:
"...include in the title of your post to CObirds, the name of the bird and county in subject line,
such as "Trumpeter Swan/Boulder County".
If not absolutely certain of identification, indicate this by using 'probable' or 'possible' in your post."
Link to the complete Rules of the Road is:
Joe Roller, Denver
And if you read CObirds, why not join the group that supports it and so many other valuable services to Colorado birders?
Join CFO!
Here's how: