No reason to "post and boast" until there is an NLI. I know of many stories where players have reached out with social media and even a local newspaper article only to never sign the NLI with that school. Could be an uncomfortable conversation to have with many.
If one ever has too much free time...go to the preferred travel programs that list players commitments and then go the roster at that school. You will be amazed how many players don't get to the campus they originally committed too.
Always keep the options open.
Just my opinion.