If you change the rules now and reset the blockchain, what kind of message are you sending? If there is a risk you will just shut down the seed notes and reset the blockchain arbitrarily in the future, it does not give a lot of confidence to miners or even investors for that matter.

Interestingly, Time Warner Cable just shut down* my residential cable modem for this same reason-- they received an abuse report about Fast Flux at my IP address, and I run a full Bitcoin Core node. Well, past tense, ran-- I am going to shut it down, now, because I don't want to risk getting reported again (even though I've done nothing wrong.) I had to call them and get transferred to their Security department to get my service restored.

(* Technically they blocked all my IPv4 traffic. The modem had all happy lights, I had an IP address, and IPv6 still worked so I could reach gmail and google and ip6.me-- but most of the internet was down to me because IPv4 didn't work.)