What is Responsive Web Design?

It seems to me that what is important is

1) content that is authentic, reads well and looks good on whichever screen size people look at it on

2) content is not being swamped by adverts on both desktop and mobile sites (not liked by authors, readers or Google)

3) host sites that provide good feedback in terms of traffic, queries and sales

All the content I have moved off HubPages - after the powers that be determined those hubs as needing needed to be unpublished (generally because they were imports from Squidoo and had more than two links to the same domain and were accused of having affiliate links when there were actually none at all) have gone to a popular w