and it works in 2.2.0 but when he says spam he means it :P me and my mate had a macro like this
/invite <snip>
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
/random 100
and we both spammed it till our little fingers hurt
found this out myself the hard way

feel guilty and sorry for my mate thoguht id spam his raid group but he got a crit error just after they downed first gruul bosss so he couldnt roll on anything /cry ive known him for ages too and hes always helped me out. Atleast he doesnt know its my fault :P
but a v nice find indeed