As you are a webmaster you must take care of your registered members and your data bases. Don't forget to take Backup time to time of your data base. Always take full back up. Don't take 1000 members or 10,000 members. Always check how many numbers are newly joined and how many removed them selves from the database. There are times when the member’s information went missing and if you contact your hosting company they will ask you why you didn’t have a backup?
They will promise you to get back the missing details most of the time you will get 50% and some time not at all.
Many web masters noticed their member list just vanishing every day in 10 - 100 in numbers.
Don't keep the back up only in one place keep them in your computer, CD's and in another hosting. So it will serve you when you are in need.