It’s time to draw some lines on where so-called “MFW creep” ends, Delaware Supreme Court justices said during argument in the Match Group shareholder appeal.

It’s an argument corporate attorneys have been anticipating and debating for more than a year and that’s been building since at least 2014 when a decision in Kahn v. M & F Worldwide Corp. was issued, setting the Court of Chancery’s cleansing standard in a case that involved a controller squeeze-out transaction.