Is this something internet users should be concerned about?

A widely cited example of a violation of net neutrality principles was the Internet service provider Comcast's secret slowing ("throttling") of uploads from peer-to-peer file sharing (P2P) applications by using forged packets.[6] Comcast did not stop blocking these protocols, like BitTorrent, until the FCC ordered them to stop.[7] In another small example, The Madison River Communications company was fined US$15,000 by the FCC, in 2004, for restricting their customers' access to Vonage, which was rivaling their own services.[8] AT&T was also caught limiting access to FaceTime, so only those users who paid for AT&T's new shared data plans could access the application.[9] In July 2017, Verizon Wireless was accused of throttling after users noticed that videos played on Netflix and Youtube were slower than usual, though Verizon commented that it was within their rights.[10]

Yes, you should be concerned. Get ready to pay more for a decent Internet speed. Companies also will be able to regulate content that is available.

A lot of screaming on various sites about this lately. Here's the other perspective:

https://www.wsj.com/articles/how-the-fcc-can-save-the-open-internet-1511281099

Personally, I'm not convinced it will be an issue. For example, just because Comcast can throttle Youtube doesn't mean they will, and if (as the above linked article suggests) Comcast is required to disclose this to users then the free market will take over. Comcast will lose customers and someone else who doesn't throttle will gain customers.

You can argue that infrastructure is in place that forces certain ISPs to be used but that isn't going to be the case for much longer. Wireless broadband will take care of that. The first wireless broadband available in a Comcast area in the above example will force Comcast to remain neutral or lose customers. The free market will keep Net Neutrality in place once multiple broadband choices are available.

How did you determine that? Sounds scary, vague and baseless.

We'll be returning to how things were a year ago...

I wish they would do away with the de facto telecom monopolies.

The problem with your argument is that this industry doesn't very well fit the definition of a free market

Not yet in most places, but like I said it isn't far off.

In any case, I don't believe that the day after the FCC decides to kill off Net Neutrality all the ISPs are going to go crazy throttling and blocking everything they can. Enough people already have broadband choices to make "We're a net-neutral company" an advertising hook to draw customers away from ISPs that choose to implement blocking measures.

Because it's never been allowed to be a free market.

Well when Comcast, AT&T, & Verizon are doing this in some markets now, even though it is illegal?

I don't know if this really is a "free market" place after all.

It's not far from it. Most people have multiple choices for Internet service. ATT is rolling out 1x1Gig service in DFW for $80/month. They are obviously doing that due to competition from the cable providers.

Multiple choices does not equal free market. It is still an incredibly regulated market, and there may be more than one choice, but there are only two or three, all of them crappy.

So what is the benefit of this?

The first time Internet has been regulated was with Net Neutrality. Telecommunications has been regulated and then so called deregulated. Carriers gouged customers on regulated pricing.

So the old stuff was 3G. The current stuff is 4g.

And everyone is racing to create 5g speeds.

So the more data you use the more they can charge you?

Is that the logic.

Prices per Mbps have come down with newer technologies