Understand the idea
Reusing one password allows a breach at an unrelated website to affect other accounts. Length and uniqueness matter more than predictable substitutions such as replacing a letter with a number.
Put it into practice
Use a reputable password manager to generate and store a unique password. Protect the manager with a strong master password and enable its available account security options.
Know the limits
Do not paste a password into a strength checker on an unfamiliar website or send it to support.
The wider context
Understand the boundary between an information website and the service that actually holds your account. Account interfaces vary, so use the service’s own help pages to confirm exact labels. Never send a password, one-time code or recovery phrase to a community moderator. DMfirst publishes guides; it does not reset operator passwords or manage player balances.
Your next step
Use the practical step above only where it fits your situation. Before an account-specific action, check the current instructions from the service or device provider involved. Write down what you observed and what remains uncertain; that makes a follow-up question more useful.