I came across this myself last week while having a 'nose' around ebay. It could well be a successful binary betting system. The chap may be selling it as he could be having problems placing the bets himself if he's run his account up to a high level, maybe he thought he'd make some money via ebay.
I read a couple of months ago on these boards by another member that spreadbetting / binary betting companies can make it difficult for you to trade binaries if you are successful at them. They will either widen the spread to a silly amount and/or be very slow in giving you a quote/fill.
I 'dabble' with small stakes in FTSE binaries via Finspreads with some small success but my main focus is spreadbetting the FTSE which since mid-March (when I ditched all indicators as entry signals and gone back to basic hourly charts with trendlines and S+R levels) I've had some reasonable point gains.
On the other hand, as THE WOLF2222 said earlier 'when you eventually find a 'winning formula' keep it well and truly to yourself! - I'd like to add that the 'winning system' is INSIDE us. It's not a magic indicator or foolproof trading method but our mental makeup - discipline/patience - fear + greed.
Find a method, something your happy with (simplest is the best). Learn to trust it by placing small stake bets over a couple of months while the market goes up/down/sideways. Develop a trusting mindset, make your own decisions on the hard right edge (charts are brilliant in hindsight) and be responsible for all outcomes. If you can make consistent point gains, slowly increase your stake and the money should follow.
It's 'only' taken me over 7 years to get to this stage - I still consider myself a novice and I'm learning everyday....... it's personal now, not me against the market but me against myself !
Regards
Darren
‘losses make you strong, profits make you weak’ William Eckhardt