About [[MediaWiki:Action-viewmywatchlist/hi]]

Ok, so what you're saying is that it is possible that MediaWiki:Permissionserrorstext-withaction/en is used with any of the dozens od action messages by an extension?

Obviously if the lego is used over so many messages, avoiding it would be stupid. However, this brings the original question for any other messages that may possibly be used with MediaWiki:Permissionserrorstext-withaction/en.

1. Which other messages "may" be used as $2 in MediaWiki:Permissionserrorstext-withaction/en by an extension?
2. Is it possible that any such message is used elsewhere too?

If I can get answers for these two questions, it will become possible to identify if the lego is a problem which may cause an impossibility of sentence formation. I didn't find an impossibility with the four messages specified, but I would like to investigate this.