Since Ryszard is not (yet) "green", not a full member, he may not be able to see any of those threads.
My wife, for example, who is simply a "registered user", can't. They just give a 'white screen'.
I think because the links above are to Archive threads, rather than possible restricted rights on an underlying, non-public thread maybe?
Attempts to follow links from other posts which directly point to a non-public post or thread, do generate the "you do not have permission to access this page. " message, as you would expect.
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