The "block" feature is only useful for the easily offended, trigger-warning-seeking, snowflake forum members who cry in fear when their shadow creeps up too close behind them.
The "block" feature would only be useful so that you could eliminate vulgar and profane individuals...which is not a problem on this forum.
As much as I disagree with some forum members on certain topics, I'm not going to block them because they may very well have some good advice from time to time about a subject that interests me. My mother-in-law and I are on completely opposite planets in terms of our political views, but we don't shun her from the family because of it. We just choose not to argue about such matters and focus on things that are useful. Same concept here.
I enjoy reading those so-called "bloviating braggart self promoters" form time to time, because they almost always get smacked off their high horse by someone who's tired of listening to it.