Is dynamic og:field penalized by GET parameter?

Question

Search Engine Optimization

At the moment, Odnoklassniki, Facebook and Googleplus do not have the ability to share a URL with their own text and description. Only with the help of OpenGraph.
Accordingly, there is a workaround: http://site.bla/?ref=123which gives og:title "Some text and 123" and http://site.bla/?ref=456, which gives og:title "Some text and 456 as well".

1. Is it acceptable with t.z. Is SEO such a game of meta tags?
2. Doesn't adding the parameter to lead http://site.bla/to a drop in the link value of http://site.bla/?

Answer 1

Is it a script to post someone else's content on your site? If so, it will definitely affect the issuance for the worse. Content must be unique - write it yourself.
The parameters will also affect, this is another link for the PS. But social networks do not convey status weight, you can’t count on it - these are not those links. Social factors are still important, they indirectly indicate the relevance of your content.
I hope I understood the question correctly =)

Answer 2

To the previous answer: The
question was not about the impact of someone else's content on the site. That it has a bad effect does not depend on the difference of og-fields.
On the subject:
1. Yes, for the search engine these are different pages, it is permissible to place different og tags on them.
Another thing is that then these different pages with different titles will have duplicate content (if the parameter only affects og tags), which is already bad. And the fact that search engines are a little less fond of parametric links instead of “human-understandable” (or simply “imitating directory”). But that was not the question, so the answer is yes.
2. Any site can be accessed by adding any parameters. For example, toster.ru/?turum=purum. And post that link on your site. No, this will not reduce its value, otherwise the garbage in other people's links to your site would lower the value of your site.
Another thing is whether the page changes when accessed with a parameter, and how it changes. It depends on whether the PS will consider it a separate page. In your case, it is not specifically this that is bad, but what is indicated in the notes to the answer to point 1.