i said that in another post theymos, the smf is nice but has a lot of loopholes, they practically added new ranks and new modification they do not need to do that only in the database, they can just use the admin credentials and give a lot of accounts new names or new ranks and it will go through without any problem.

i ran an smf few months ago i know the stuffs about it. and its very easy to do.

the only thing you can do is find the modified accounts one by one or give incentives to people to make them look for them and report that to you so that you can make the necessary arrangements to default it.

what they also could have done is change the date of last log in, doesnt need to have the database for that. simple modification in the clock will do.