Is drawing the match on purpose a breach of rules?
In my opinion, regardless of whether it is a troll or just plain sucking,
a constant draw of matches is nothing but a type of game-play.
Were it in a private server, then the operator of the server could do
as he liked to the player and restrict certain types of game-play, but
since you say it was in a public server, and since it isn't a breach of
any rules that I am aware of, I'd suggest you just leave those people
and play elsewhere.
As per your suggestion of "Active in-game admins," I agree with you
on the matter that there are not many active Gms in servers, but
you could always contact a Gm directly through PMs, like pal suggested,
or through
#support.