GUID in Extensions Center URLs

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What about http://extension.maxthon.com/server/go.php?guid=GUID links?

Maxthon used this as permanent links to add-on pages: if add-on is available on Extensions Center, this page will be opened.
This is "Details" in old versions of MX (MX3, MX4 and MX4.9), these links worked in any browsers. But today it does not work.

Is this temporary troubles? 
Because I used thes links as feedback in my extensions and not it does not work for me. 
Should I remove Rate and Rewiew from my add-ons?

As you need examples:

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