So, bug #14137 was just filed and due to the lack of ability to attach files via the bug form the body of said message is inordinately long.
Emails sent directly to the lists can have attachments so its not like we are prohibiting them as a general rule - though maybe the behavior is different on -bugs...
Without testing I presume that the user filling in the bug report is emailed the message that they send - or at least it could be made to work that way.
The form gets sent to pgsql-bugs. If the user is subscribed to the list they get a copy, if they're not they don't (and have to review it in the archives).
In lieu of (or in addition) to adding a file upload capability it would be nice to limit the general initial message size and inform the user that should they need to amend their posting, to include files or additional details, they can do so as a reply to their original message.
I haven't given it too much thought but a couple recent incidents of super-verbose message bodies provoked me to at least voice my thoughts.
Limiting the length could certainly be done, and trivially so (we do actually limit the length of the subject, just not the body). Any suggestions for a reasonable actual limit? :)
Adding file upload capacity would be a lot more work. I think we need a "better overall solution" for dealing with them before investing in that.