RULE #4: Deny trades for those who can't send more than 50 a day
 

No one cannot establish a good relationship if you, or your trade partner, cannot send more than 50 people a day. You can increase this number if you wish, but 50 is a good standard that keeps out the nickel and time trades.

Totally agree! :thumbsup
Check your Stats regulary and kick out those trades, which bring you nothing.
Better keep a few good Trade/Linkpartners, instead of having a One-Mile-Long "Friends"-List.