It's the age-old choice. You can have great piles of content at your fingertips, at the cost of accuracy. You can have stringently fact-checked truth prepared by the work of others, but only a small bowl of it. Or you can put in the work yourself and find or assemble a large body of truths, at the cost of your own time.
The warhammer.fandom wiki will supply you with piles and piles of articles and wordcount, some significant percentage of which will be blithering horseshit. Lexicanum has a comparative paucity of content, but is more accurate. Or you can do the deep-dive of comparing the two's articles on a given topic and checking the citations to see what the truth is, if you've got hours to spend cross-referencing books rather than minutes opening a browser tab.
You can't have all three.