From another site:
There is speculation in the PlayStation homebrew community that the change was a way for Sony to sneak in code that will hamper modders. An online check-in is a common tactic against modded hardware, as it prevents illegally downloaded games from being played on the console unless it connects to the internet, which then begins the process of downloading and installing the latest firmware.
Inconveniencing everyone because of a sale you never had. Brilliant.
Contrary to some belief on social media, this doesn’t mean that if the 30-day limit expires, players will lose access to their game forever – it means that after the timer runs out, players won’t be able to play the game again until they connect their console online, so it can perform a validation check.
Key detail for those that get the free monthly games from PS+.
Still annoying though. It’s not really buying the game anymore, but renting with an indefinite return date.
That is precisely what Microslop was going to do with the XB1 and they got flayed for it.
As long as you can hook it up to the internet