What's wrong with it?? U make a siyum. I make a party.
Very not allowed.
See Mishna Berura Taf Kuf Nun Aleph:73
You are only allowed to eat meat by a siyum if:
A) You were anyway up to finishing during the 9 days and didn't rush or slow down to 'happen' to finish then.
B) You normally make a seuda when you finish a mesechta
C) You can only invite people that you normally invite to a siyum.
Many camps used to make mass siyumim totally shelo Kehilchasa and many have now stopped doing it.