The net-neutrality rules are put in place in 2014 by Obama administration. I am pretty sure, without so called "net-neutrality" regulation this site existed and been read.

No, net neutrality rules have been around since 2004. Before that there wasn't much need because dial-up was regulated as a telephone service which have had their own neutrality regulatioins since forever.

Those early rules were largely voluntary but the FCC did take companies to court to enforce them with varying levels of success. It was this variability and a judicial erosion of what was considered permissible along with some fairly egregious shenanigans by internet service providers that pushed the Obama administration to formally reclassify broadband as a telecommunication service to put back in place net neutrality rules that stood before in the days of dial-up.

Doubtful. Net Neutrality (at least in its topical compulsorily form) has only existed since 2015.