i actually meant hackers.
I didn't meant the mods that are installed on phpbb itself.
As you know phpbb is very popular among hackers, due it's popularity & some vulnarabilities. They are attracted to it like flies to crap.
You may remember, the previous version of phpbb was wide open to hacks, and therefore to the scripts that included these codes that did macros on all xx.xxx versions. Using this, they can gain access to the root / of the server that /forum is running on.
Now, what I mean with this one is not being too popular, is since this forum s/w is not widely used, there is no point for them to eat their brains out searching for flaws.