I got a PM recently about 'hey, your link is broken' when it was still on my account, and it turns out in the process of MEGA transferring domains from mega.co.nz to mega.nz that some of the URLs got changed in the process. Not the whole URL, just a tiny few numbers at the beginning of the hash. Basically, be careful - I just got done going through every single upload I did for a certain thing and I found like forty broken links - not all of them were redirecting to the new domain.

Thanks for the heads up!