The wiki of freeze says:
Do not use. This tag is in process of removal. If your software is freezing then you likely need to file a bug, as freeze problems are usually off topic here and will likely be closed.
I feel this is similar to the bug or error tags, both of which were blacklisted:
On a related note, we have a frozen tag, which I just emptied - it should be nuked too (probably as a synonym).