Maybe it's time to realise that no one uses 56k anymore and that most are on at least 10MB broadband so the limit on signature sizes can be increased?
Yes it's absolutely ridiculous, people were still posting 800x600 56k friendly screens in the PC screenshot thread until I started a high res 'I don't care about your sucky Internet' thread.
PS for those that think we all have +10mb broadband, you are wrong. I can barely get half of the 8mb i pay for!! i live in Surrey about half an hour from London, not exactly the end of the world.
It's unlikely sigs being a few kb over 20 would make any difference to your surfing experience on a 512k connection, so why you can even bring up 8Mb as an argument baffles me frankly.
Simple fact is anybody on this forum is going to have a half decent connection.