For many things that might seem reasonable, GMs do appear useless.
However on several occasions I was glad one was around (not lately though).
/petition special names or surnames for some weird reason that get rejected by the name filter.
Had to petition to get N'D in my Dark Elf's surname.
Had to petition: 'Wolfspirit', 'Eazy' (got them).
Once while getting KSed in East Karanas by level 50s (I was level 24). I finally got fed up after asking them not to KS me several times. GM poofed in and told them to leave.
Petitioned someone who was constantly training our group in High Pass, GM did respond, but after 3 hours, offending party had left hehe..
Several times stuck under the world and needed a port out (glad THAT never happens anymore
)