I can only speak for myself, so take this a my personal view. I think all it is about respect. If you make some changes to a table, then ask the author if it is ok to upload it, maybe that author likes what you did and he/she should like to make it the official version. I remember 32assassin doing several changes to some of my tables and he always asked me if I wanted to upload the table myself. Sometimes I said yes and I uploaded the table with his changes, and sometimes I preferred him to upload the tables as his mods, because there were too many changes, so the tables almost were more his than mine
On the other side, when I upload something to the forum, I know that sooner or later someone will use that table and upload it other places and it will be added to torrents. I have even had my tables modified, like changing the graphics, and uploaded and even sold as their own. And you know what, I actually don't care. I really like when someone mod some of my tables, it means that at least they are good enough so someone has interés in make them better. You can always make a table better, I feel I'm never finished with a table, I always see something more I could do to it
I don't agree with people selling the tables, since we give them for free. But there will always be people doing that, as there will always be people trying to make a living on the work of others, and there will always be people trying to rob you or swindle you.
I usually don't give my point of view on things like this, since for me it all is about respect. So if you ask me if you can upload a mod, then I should ask you "have you contacted the author?", "have he answered you?", "is the author gone?". And if you have tried that, and there is no answer, then yes, sure, upload your mod, just keep the name of the original author and upload your table.
I just make tables because I like to do them, it is a hobby and it is entertaining. I can work with images, sounds, scripts... and I have a great time doing them
And if someone want to mod my tables, then why not, I know that when something is uploaded to the web, then you have almost instantly make it "public domain".
I think I stop here, I almost never write so much, hahaha. So yes, sure, join the Blackbeard's crew.
(but not everyone will like it
)