This is nonsense. It all depends on the poster.
Some posters create a thread for every play with no intention of ever tracking.
Some posters use the SBR spreadsheet to track wins and losses.
When posting a season or event, I post plays in the same thread and usually update the tracking with my own spreadsheet showing more information about the posted plays, like links to original posts, and whether or not the line moved my direction.
Like I said, when winning, I update the spreadsheet less often, and concentrate more on the losing records spans, I'm always trying to learn or teach.
For the CFL, with 4 games each week and 20 weeks, the forecasts were successful nearly every week so those are usually updated in detail quarterly. This last year in never faltered so I rarely took the time to update the winning record. We had one bad week and I talked about it non stop for the next 8 weeks.
The same can't be said for some of the short term plays and those were reviewed at the end of each week.
For posters like me, it's easy to go back and track the plays if you wanted to, they are in one spot.
Otherwise, if there is some poster you want to track, you may have to do it yourself jumping from thread to thread.
I, LT Profits, JJ Gold, DDD, Fidel Cashflow, Da Manster, and some others have all been a part of easy tracking. There are more in the subforums but don't expect to many posters to make it easy for you.
Many aren't really betting and have no intention of keeping track of their plays. Like I said, those posters usually start a different thread for every play.
If you really want to track someone, you may have to take the time to do it yourself.
Laziness and shortcuts will often keep a potential winning better from ever getting off the ground.
I wouldn't count the contest results too much, sometimes we test theories, plays and new ideas in the contests. I've done that before.
Good Luck