Being able to post reviews on products you don't personally own

[swag]

ISSUE
You are not able to write a review on a game that you've played using Steam families if you try using it's store page, but if you go to the game in your Steam library and click on "Write a review for X" you are able to submit it anyways without ever purchasing it yourself

OS
Windows 10

STEPS

Select LIBRARY from the main menu
Select ALL GAMES
Select any game you have in your Steam family that you don't personally own
Navigate to My Review
Select Write a review for X

RESULTS
Being able to write reviews for games you don't personally own

EXPECTED
Not being able to write reviews for games you do not personally own even if you have played it using Steam families, as in line with the error you get when trying the same on the game's store page

[Elucidator]

Steam Family Sharing, the previous iteration of Steam Families, let users write reviews for games that their family member paid for, so long they have installed and played said game. This can be confirmed by the following:

The Steam Store page shows the following information.
"A member of your Steam Family owns this game."
Despite this you can add the game to your shopping cart. (you don't own it.)
and despite this there is a clear box above this all for writing a review.

Yes, you can indeed also write a review from within the steam library, but the point is, the Steam Store page also offers this option.
---

The way I see it, is that the bug is the other way around. You should be able to write a review for the game if your family member bought said game and you played it.
This option not being available from the Steam Store page is where the bug lies as such.


edit: after looking around on the internet, I found a screenshot of someone trying this a long time ago (2015) and it failed. A message in red appeared only after they tried posting said review saying that they have to own the game; which is silly.

I am not sure if you should be able to or not write reviews. I didn't find it in the Steam FAQ or help files, nor did I test this, but in my opinion you should be able to. People who receive the game for free can also write reviews. It would be very silly if you cannot simply because your brother or father or mother or sister "owned the game" instead of you.

Imagine it meaning that your opinion wouldn't matter, even though you clearly played the game. I'd say that a minimum amount of time needs to be spend playing a game before posting a review is possible, rather than access / ownership.

Here's the screenshot: https://www.reddit.com/r/Steam/comments/5uyfg6/reviewing_a_family_shared_game_steam_youre_so/#lightbox

Also "own" ... "the product". That will be a very interesting conflict with the Steam Subscriber Agreement's words.

The Content and Services are licensed, not sold. Your license confers no title or ownership in the Content and Services.

So... which is it Steam, Valve? Do we own the games or not?
Do we own the "copies of the projects" or not? (not the original of course, we don't have copyright over the original work (and thus not over its copies and derivatives either), but I mean, did we buy copies of the game and own stuff or not?)

Anyway I was trying to point out that this "check" causes more problems than it solves.

[swag]

I agree that we should be able to write a review if you have played the game using steam families even if you didn't buy it, it really feels like your opinion doesn't matter as you said. Right now i'm not even sure if Valve wants us to because one button allows you to publish a review while the other doesn't. It just makes no sense to me.

[Poraimos]

Well, you could review Family-shared games for a while (at least since August), but now they fixed this smh