I do like 1.7 a lot, and whenever a server supports it I will always be using 1.7, no doubt about it. The only issue that I have is that nearly all servers are running 1.8 servers and then just using ViaVersion to make it compatible up to 1.12.2. They don't realise that there is a plugin called ViaRewind that runs with ViaVersion and therefore makes the server compatible from 1.7 all the way up to 1.12.2 with no hastle or configuration.
Both of these plugins that I have mentioned work as they are supposed to right out of the box but more features are available in the configuration of both plugins.