Hello Strategist. I've removed those screenshots from your recent posts as the Suggestion forum is no place to publicly call out users. Instead, please use the Report Center for these cases. As for your suggestion, I'm not sure how possible it is. Giving each player an ignore/ "block" list adds more variable data to the server databases. Whilst it may sound like not much, it quickly adds up and slows down the servers. We recently wiped around 300k unused accounts to free up space on the servers for other things too.
A better solution for the meantime is to report the users who break rules against you. As per our Punishment Policy, users only get a few chances to correct their behaviour before receiving harsh bans. If the user is a repeat offender, they will quickly stop becoming a problem. I believe this was also suggested before, and denied for the reasons listed. Thanks for the suggestion and I hope you have a nice day.