Whether someone is botting or not, there are never 100% proof for that... But the existance of bots are beyond doubt.
It is like conspriacy theory, someone may be able to do something/group so regularly where luck and stats should indicate they are not able to. Of course, people that have maintained a monopoly do not really want competition, and pulling sometimes certain NMs do require legit skill, and people who have done it for long time will always get an advantage.
I hate to say that, but I do not what to suggest to do about monopolization. If hard-to-proof foul play is involved (game or RL), it is kind of like being tough lucked; neither you nor a GM/law enforcement can really do anything about it. If no foul play is involved, then one will have out-wit and beat the monopoly group with skill. A lot of people now accuse constant NM campers as "gil sellers", that is nothing more than demanding they to leave or handicap themselves even the camping group are legit -- something I found unfair actually to the camping group.
____________________________
Amanada (Cerberus-Retired) (aka MaiNoKen/Steven)
-- Thank you for the fun times in Vana'diel
Art for the sake of art itself is an idle sentence.
Art for the sake of truth, for the sake of what is
beautiful and good — that is the creed I seek.
- George Sand
A designer knows he has achieved perfection,
not when there is nothing left to add,
but when there is nothing left to take away.
- Antoine de Saint-Exupéry