There should be an option to have those posts not show up at all instead of the " XX who is currently on your ignore list, made this post." message - ideally even hiding replies to those posts which quote them.
With the current system a lot of threads end up being pointless discussions between a bunch of (really poor) trolls with people who for some reasons unknown to me do not have them on their ignore list, meaning that one ends up reading the mindless drivel anyways - it's very hard to find the very little useful information (in the race threads for example).
Should the above not be a viable solution how about race threads similar to the "F1 2016 vs 2017: mathematical/statistical comparison" viewtopic.php?f=1&t=26028 thread? Just race strategies, laptime comparisons, vids of overtakes, graphical analysis of collisions etc