the best way to counter clones are...
STOP REPLYING TO THEM!
if u suspect the threadstarter who is clone, dun even reply his
post, cos it will only flood the 'Newest Topics' wif all the
shit.
eventually, those trolls will find meaningless of creating so many
email, n so many nicks YET not getting the attention they yield
for.
if u suspect any spam threads, pm the moderators to take
action.