Speak at Speakers' Corner - or here

Here is a picture of Speakers' Corner in Hyde Park, which I found in my picture library.

Famously, of course, it a place where public speaking, debate and discussion can take place.

As long as deemed lawful by police people can speak on any subject.

It made me wonder about physical things and places like this. Are they becoming outmoded by the Internet, where people can and do write and 'chat' about anything and everything - not all of it lawful?