> exploit others for free for ever They made use of a functionality that was willingly made available for free. That changed, so they are stopping to use it.

> exploit others for free for ever They made use of a functionality that was willingly made available for free. That changed, so they are stopping to use it. They made no financial profit, but offered a public service of great utility, for a marginal cost to Twitter that is practically zero. In return, it made Twitter's platform more useful. Everyone benefits. It baffles me to see this called "exploitation".