Whew, this is such a layered question. The differences go way beyond simple word choices.
Having followed both the unofficial fan translations and the official Webnovel release for 'Douluo Dalu II: The Unrivaled Tang Sect', the most immediate gap is speed versus polish. Back when I was desperately waiting for chapters, fan groups were pumping them out sometimes hours after the raws dropped. The excitement was real, but the text could be rough—inconsistent terms, awkward phrasing, and those infamous machine-translation patches. You'd see 'soul ring' in one paragraph and 'spirit ring' in the next, or 'Blue Silver Emperor' just called 'Blue Silver Grass'.
Then the official version landed, and the consistency was a relief. Character names, skill names, and cultivation terms were standardized. The prose got smoothed out, losing some of that chaotic, direct-from-the-source energy but gaining readability for newcomers. However, I sometimes miss the raw edge and the community notes fan translators would add, explaining cultural references or puns that the official version just translates over. The official feels like a finished product; the fan version felt like a shared, evolving secret.
The biggest shift, honestly, is in the feeling of consumption. Reading the fan translations was a race against time, full of forum speculation. The official release turns it into a scheduled, almost solitary routine. Both have their place, but they create entirely different relationships with the story.