They're not the same product. Here's what each does well, and what to use depending on what your community actually needs.
What Amino did better
Profiles you could actually customize. Public discoverability, strangers found your community by topic. A built-in leveling and reputation system that turned long-time members into recognizable regulars. Wiki/lore pages tied to the community. Polls and quizzes inline with chat. Member walls. None of these exist natively on Discord.
What Discord does better
Chat reliability. Voice. Bots. Moderation tooling. Threading. Cross-server presence. If your community is centered on real-time conversation, Discord wins.
For fan communities specifically
Most successful fan communities post-Amino are running both: Discord for daily chat + a profile-rich community platform like Aminoka for the curated content layer (rules, lore, character profiles, member showcase, polls). Picking one to the exclusion of the other costs you either chat velocity or community depth.
Bottom line
Discord is a chat app. Amino was a community platform. They're complementary, not interchangeable.
Keep reading
More from comparisons.