I tried to vote on this question *Why are there such outdated and terrible answers to questions here?) but got a red alert:
There is no indication in the question that it is locked - how come?
I tried to vote on this question *Why are there such outdated and terrible answers to questions here?) but got a red alert:
There is no indication in the question that it is locked - how come?
You missed this bit under the question itself:
Votes, comments and answers are locked due to the question being closed here, but it may be eligible for editing and reopening on the site where it originated.
So it may be, but it wasn't...
Emphasis mine, but maybe the mods can change that and add the same emphasis so this doesn't happen any more in the future...
Just to shed some more light on what happened under the hoods, causing this whole confusion, I reconstructed the history of this post (including only the here relevant events). All times are UTC on the day when the question was posted.
Sources: original question / migrated Meta question / original timeline / Meta timeline
Note: Some of these links might only be visible to users with enough reputation.
So now we have the original question on the main site being deleted and its migrated, closed (therefore rejected and locked) and then again finally reopened counterpart on Meta.