Why was this comment flagged? It contains factual criticism and provides even sources for why a statement given in the article is wrong.

That’s most definitely "contributing to discussion".

Thanks to the customer unfriendly terms and conditions, a family plan is not always an option, even if a family subscription is available in your country. In my case, I have cell phone plan with a Spotify Premium subscription included, and because of that, I can't get or upgrade to a family plan.

So it may be true that Spotify has a family plan, it's not available to all their subscribers. The situation is a bit similar to Google Hosted Domains customers who can't get a Google Play Music Family Plan: unnecessary complicated terms and conditions and exclusions.

And finally a 'deal' that existing premium members can take advantage of. Since I'm forking over £10 a month anyway I might as well pretend to have a family too.

Although I do enjoy signing up to the 3-month 99p deals and moving over my playlists each time.