What if someone decides to DDoS the static IP user? I think it should be a choice, preferably from an online control panel. Limits are okay but not being permanently locked to one IP & having to call support for it to be changed.
I'm happiest with dynamic, my IP lease is over as soon as I disconnect from WAN. True, any good capability can be used to do bad things, at least I don't
Because of IP logs, I'm not sure dynamic IP is harder to catch. Rather, it renders single IP bans useless, as you said, and requires an IP-block ban that blocks any user from that ISP.
Static ipv4 you may be screwed although on sky you can turn static on/off on a whim, I think you can on plusnet also, with ipv6 is the prefix that be static not the ip itself, you could simply get a new ip from your prefix to your device.
Of course I have to ask I am curious, why was you DDOS'd as a home user? You got into an argument with someone in a place where your ip is visible?
Whatsapp, twitch, forums, youtube chat etc. all hide end user ip's from non admin's. IRC networks using modern ircd server's also mask ip's now days.
Dynamic IPv4 is a "bit" harder to track the customer from authorities, as isp's have to check logs, but UK isps are required by law to keep this data available, so it only makes it a "bit" harder.
The IP footprint from a static ip, well if you browse this site kitz knows your ip, however if you browse say tbb, she doesnt know ip's from that site, so for someone to say track a user based on ip's across the world wide web would find it extremely difficult. Much easier is if someone uses the same user id everywhere then track the username instead. A large entity like google tho could track pages visited from say google search and across things like youtube. I would say the most dangerous thing for worry of been tracked from an IP is if you use a DNS server that logs query requests. Google DNS probably the best idea google ever came up with for tracking people.
Avoiding been tracked via a static ip isnt overly difficult, use a proxy, vpn, trusted DNS server, although these type of things can also be tracked also in different ways but at least its not using your home ip.