Weird user on over last few days -- constantly switching from mining Mazacoin and I do not know what.
Not sure if he is mining elsewhere on pool or just  in out in out shake it all about  ... hmmmm

refresh and he is top  -- refresh and he is gone -- refresh and he is back at top ?

Strange because we all know when you add to pool it takes a while for your hashes to show...
this guy seems to  be top then gone -- then back again

while everyone else seems to -- be normal.

Maybe his home farm is set to flick backwards and forward  between pool or something --or he is  throwing  bits of time between pools that
are mining same coin so he gets some shares in on each.

Whatever he is up to seems to be having a  effect on users on this pool , mind the others -- difficulty  seems to vary greatly along with users habits.

User is 138466.

//edit

just caught him disappearing -- ( was still registering some  )

1      VitaNet   11215019
2      138466   6567749 <----------- HIM at 22:42

when at top ------>    15500000 ish ---

obviously 0 when gone