Thank you for the replies.
And thank you for the clarification, Steve. Admittedly, the reason I want to do this is partly because I was afraid unnecessary tables could cause issues – which you confirmed will not.
However, I also just want to build out a clean website. On the “clean” 3.04 version I am working on, I’ve already installed a portal of which I have stripped out everything I don’t need from the php and html files as well as the corresponding table.
I guess the site I currently have is such a Frankenstein of coding with haphazard fixes and bandaids everywhere, I just want something clean. In short, I have mad OCD.
For what it’s worth, I did find the database cleaning tool as a beta release ...
[BETA] SQL Database Clean from MODs v0.0.1 for phpBB3