Database names and FTP account names are now prefixed with your account name. There are a number of reasons for this:-
1. It helps support staff easily identify who owns a database or FTP account.
2. With many databases with similar names without a prefix it's very easy for support staff and engineers to incorrectly locate the wrong database. Examples are:-
wordpress
word-press
ASPNETDB
ASPNET-DB
ASPNET_DB
3. When customers install Web Applications they often try to use the default database name, for example we are forever getting support questions from people unable to install web apps like wordpress and quite often it is because they are trying to use the default database name 'wordpress' which, unless it is a new server, would be already in use by another customer.
4. It adds extra security as hackers will often guess the names of database on a server to hack. If you are using the default name of a database such as 'wordpress' then it is much easier for a hacker to hack your database as it does not take much for them to guess your database name.