Thank you for adding {SIGNATURE} variable in php files related to MCP (since phpBB 3.2.4)...

However, I think you can improve that feature:

• if a signature is not attached to a post, the poster's signature is not displayed in viewtopic.php, and should be not displayed in the post details too.
• The same logic should be applied in MCP queue or reports, if the reported post didn't contain a signature at the time someone reported the post (just like the reported text is the text at the time someone reported the post, regardless the future edits)
• You can imagine someone reports a post because of an inappropriate signature. If the post author or anyone else changes the signature after the reporting, the former signature no longer exists, even in the report [this can be definitely considered as a bug!]. Whereas the reported text will be still in the report, regardless the future edits.