The age is useful when considering risk of enshitificarion. A well established and respected vpn has probably figured out how to run profitably, and will probably only go to shit after being sold out or a similar major internal upset, a 3 month old vpn may be offering below cost deals to undercut (or just catch up with) the market whilst the startup funding lasts, in which case they’ll have no choice but to start turning the screws once they have some customers