One person with a ship is, by definition, not a fleet.
One person with more than 5 characters is a fleet, even if they cannot all be played at the same time. Altaholics follow Cryptic. Cryptic makes games that encourage alting and support solo play and then they make game mechanics that require teams.
That's all fine and good for stuff like TFs and STFs, but not for something that gives you extra bank tabs, fleet emblems and access to a costume slot you don't get access to otherwise..
If someone wants to have a fleet of their own and doesn't want to deal with fleets with stupid names and bossy people let them. Why try to force them into group play when it is not necessary to do so?