There are many problems with crypto, and around many of the projects in the crypto space. I've experienced frustration with all the things already mentioned, from the numerous wallets (and tendency to force running a full node) to the sham coins and the pump/dump groups.

Something else is how decentralised pertinent info can be, particularly in community-driven projects. You'll find information that should all be in one place, scattered across the website(s), Discord, Github, Gitter, Medium, SteemIt... Makes life easier if project-related resources are consolidated. Let the source of the contributions be decentralised, sure, but give people a single place to go to access all that info.