On it’s face... It sounds bogus. Probably looking for some sympathy.
Just how pathetic is this “server”? Most likely the customers (if they even exist...this is likely BS) decided to not tip because it is their option for whatever reason they may have had. This is a free country. Tips are not mandatory. Is the server an illegal alien invader criminal??? Maybe the server does not understand the breadth of freedom in America? In any case, shut up and do your job.