So while there is some merit to locking the q, I don't see it it fulfil all the criteria "Questions can be historically locked when:
The post does not meet the current guidelines for a good, on-topic question, and
The post is stellar, in spite of its off-topic nature, and
There are a large number of views, upvotes and inbound links on the post, and
The post is contentious; e.g., it has been closed and reopened at least once, or deleted and undeleted at least once."