Hey Now it is a time for CI Team to prepare and write a CI 4+ Tutorial Book

It is true that this MyBB has an outdated design or UI, hard to read code, and few features to deal with spammers/bots.

Perhaps it may be better to add a simpler forum to the official site.
It seems https://laravel.io/forum is much simpler, and
it requires a GitHub account to register: https://laravel.io/register

In fact, the biggest problem with the forums is that it is difficult to distinguish whether a post is by a real user or by a spammer or bot.

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