Topic on Talk:New requirements for user signatures

Signatures should be in a proper format. This is long overdue. ~~~~

I'm OK with the proposal, and I would explicitly give communities the option to enforce the requirement on existing signatures. My guess is that some communities would be willing to enforce the requirement on existing signatures after a grace period and after providing notifications to affected users who have noncompliant signatures.

The software should not allow any changes to a signature that leaves a signatures with any External links, line breaks, horizontal rule, unescaped pipe character, images, or lint error including font tags, or lacking a link to some user page. Users with signatures not in compliance with any of these should be given 60 days to fix their signature and after that the signature should be wiped and they get the default signature. There should be a link to a help desk where you can ask, among other things, "Please help me create a signature string that renders like my existing string but is in compliance with the new rules." On wipe-noncompliant-signature day, non-compliant signatures should be stored in an "Old Sig" field to help those on Wiki-breaks to develop a compliant signature when they return.

Presumably, if you have a custom sig, you have also signed a comment. That means that you could find a copy of your custom sig in Special:MyContributions.

I am fine with Anomalocaris' proposal.