6 years is a lifetime at that age. Its like assuming your views at 17 are a reflection of your views at 11. He may still hold those views, may be extreme alt-right. More important than a blog post he wrote 7 years ago:
What did he make his explosives with? (not promote the recipe but origin of information may indicate he has some sort of training i.e. who makes bombs like the ones he made)
How did he select his targets? (was the goal simply an attack on /qresearch/, why would he personally have a motive to participate in that esp if alt-right)
Why kill himself? (what was he afraid of? something worse than death? was it an accident?)
Q mentioned a coordinated effort. Shills on the board started promoting the bombings as being connected to Q posts. Media starts dropping hints about bombings being racially motivated. Not coincidences.
The political blame game is not important here. This looks like an attack on /qresearch/. Innocent people lost their lives. The people who lost family members over this deserve to know the truth.