Azhdar: Why MaGog still shows my old wishlist? I updated my wishlisted (removed some titles and added some others) and used "Get from GOG". The message box confirms changes but when I search my wishlist, the result is from my previous wishlist.
I believe you may be referring to two unrelated things.
The information displayed under "Wishlisted by" is automatically updated from your public wishlists every six hours (next time in about one hour). If you're talking about this, you have to wait for the next update.
The manual "Get from GOG" operation updates the "My Tags" fields with "owned" and "wishlisted". If you're talking about this, note that the default behaviour only adds "wishlisted" and "owned" tags, but does not delete any. If you wish to allow delete (e.g. because you removed some titles from yur wishlist without buying them), you need to choose "Remove the wishlisted tag" in step 10 of "Get from GOG".