Providing you with internet access is an act of trust. Be trustworthy.

Protect privacy, including your own.
If you are a minor (under 18 years of age), the law requires this. This is the reason your logbook has a number. Don't use your name, address, etc, in your logbook. You may post images of yourself, but only if they are appropriate.

Don't be mean.

Give credit where credit is due.
Don't represent another person's work as your own; enable users to find the same source you used.

Act as if everyone will see what you've posted and know who you are ...forever.
Do the right thing, and you'll have nothing to hide. Mistakes are fine...but not careless or damaging ones.