If the master degree<span> is the </span>person's<span> job, like a </span>master's degree<span> of science, then use the full post-nominal for that </span>degree<span>, such as “John Doe, M.S.” Write “Dear” on the first page of the letter, followed by the </span>person's<span> title and the </span>person's<span> last name.</span>
I think if u message them privately it will stay private. so no i dont think it will go on the other persons page.
The word "cheap" in this sentence doesn't mean "not expensive" but rather "low-quality" or maybe "easy to break".