I have had two WordPress blogs hacked into in the past. That was at a time when I was doing very little internet marketing, and until I found time to address the situation (months later), these sites were penalised in the search engines. They were not removed, but the rankings were reduced.
Backing up your blog regularly assists in procuring from fix hacked wordpress hackers. You have to keep a copy of your files hide away in backup system so you can be certain of your database. This makes you a protected files that serves you in times of down that is sudden is the system. Hackers are less likely to slip from a bonded back up system.
Everything you have worked for will proceed with this should your site's server return. You will make no sales, get signups or no traffic to your website, and in short, you are out of business until you have the website back up again.
Yes, you need to do regular backups of your site. I recommend at check this site out least a weekly database backup and a monthly "full" backup. More. Definitely, if you make regular additions and changes to your website. If you make changes multiple times a day, or have a community of people that are in there all the time, a daily backup should be a minimum.
It's time to sign next up for a Facebook account that is new and use this person's name and identity. Once I get it all set up, I'll be emailing you posing as your friend and asking you to be friends with me on Facebook (or Twitter, or whichever societal site).
But realize that online security is something you must start thinking about. Don't just be the reactive type, consider action to start protecting yourself today. Do not let Joe the Hacker make your life miserable and turn all in creating come crashing down in a matter of moments that you've worked hard.