Vote up the post containing site X, if you want a migration path to site X. Vote down, if you won't.
Just to inform the discussion on the topic, for those without 10k+ access to the migration stats, here are the migration statistics as they currently stand:
The numbers mark the total migrations away from this site over the past 90 days. (The blank site up top is this meta.)
These are migrations away from the site implemented by direct moderator action, which is easily accessible to users via a custom moderator flag. It is then a question of opinion on whether these statistics represent an overwhelming load on the moderator team.
Also, just to put the above numbers in perspective, here is a rough map of SE-wide migration pathways from Is there a map of migration pathways?, which shows the kind of migration volumes that make automation worthwhile.