I understand that questions and answers are locked to prevent unnecessary comments or content changes. But why does the locked state also prevent votes from going through?
Take this question and its incredibly popular answer for example: RegEx match open tags except XHTML self-contained tags
This question was locked almost a year ago. This means that it has been unable to receive any votes for all this time. The lock message, however, has nothing to do with votes:
This post has been locked due to the high amount of off-topic comments generated. For extended discussions, please use chat.
Now lets look at its insanely popular answer: https://stackoverflow.com/a/1732454/1317805
This answer was locked back in March last year, meaning the answer too has been immune from voting all this time. This lock message again states nothing about votes:
This post has been locked while disputes about its content are being resolved. For more info visit meta.
Why are votes blocked when posts are locked? Doesn't this create a bias against the post?