1) I dont use anything, not sure what you saw exactly but its most likely
a) sharkscope.com
b) officialpokerrankings.com>>>both poker tracking sites
c) full tilts recent tourny history page
d) kcanucks spreadsheet he made for our group stake
others use HUDs like pokertracker or holdemmanager
2) its fun, and can be profitable (tho Ive been scammed too
)
watching some of CCs better players on big buyin games (especially when you own a piece) is exciting.
our group stake has 8 members now but a few others were in for some of it.
we all started at $5 each and are now at $90
there is also other staking sites like parttimepoker, which is all they do.
If you were thinking of trying it, start small, make sure the player has proven themselves trustworthy (most long term members here are good), you can research stats on the sites I listed above (1a/1b) and enjoy