Netiquette does not advocate for:

Using plenty of abbreviations.

Giving authors due credit.

Looking for previous replies that might help you.

Posting personal information is the safest if:

Uploaded to the cloud.

Posted privately.

It is not posted.

Hackers gather most of their information on average users by:

Extorting them.

Using sophisticated software.

Googling their names.

Are viruses and malware the same?

Viruses are just a type of malware.

Not at all.

Yes, they are synonyms.

Which one has the most space?

Dropbox

Mega

Google Drive