Agreed if there is a person that you do not like, or they offend you in some way then by all means ignore them and do not engage them.The ignore feature is probably the best solution since the basis of the forum is promoting freedom of speech.
There will always be someone wrong on the internet.
I recently offended a person that I invited here who is still a very active poster that PM me and said that he was placing me on permanent ignore. All I did was give another POV to his post and it was enough for him to place me on ignore. I respected his wishes and do not quote him anymore. I still read his threads and posts because I like most all of them. The old me would of trolled him until he left the forum when I was back on CARM.
We don't have to like each other but we can respect the wishes of others if they do not want to engage us. And hopefully none of us are trying to make things personal with those we disagree with theologically. There are many people here that I personally disagree with theologically- unitarians, oneness, catholics, calvinists and others but I must remember to defend my beliefs, share them without attacking the person with ad hominems and causing unnecessary division. Make a case against their position while respecting them as an individual.