EGR tried to break as 'exclusive' the fact Betfair are closing accounts that just read data and don't place bets. As we know this has been going on for ages but it at least does hint what a commercial usage profile is: -
"Exchange betting outfit Betfair has closed rival sportsbook operators ‘hedging’ accounts in what eGamingReview reports is a bid to compel competitors to sign up for licenses to access Betfair’s live data stream. Betfair’s API and data boss Tom Johnson told eGR the company “closely monitor” competitors’ use of Betfair’s live exchange prices, which he described as “very valuable intellectual property.” Johnson said that if Betfair detected high data usage by accounts that it determined were “operated by a betting operator or have an association with a betting operator” which hadn’t yet signed up for a data license, “we are likely to close these accounts.” Johnson admitted that Betfair has occasionally chosen to block a company’s IP address rather than close individual accounts.
Johnson said Betfair has convinced “more than 20” operators to sign up for data licenses – the cost of which can top six figures, depending on usage – and that they don’t close accounts “until the licensing process has been fully explored.”