(Those indeed were famous last words - I enter WordPress contests all the time, although they still aren't my favorites! I have learned to multi-task while I'm waiting for the comment to sync and I can submit another comment!) I would never put my own readers through what I had and do go through every time I enter a giveaway hosted with Wordpress. Thanks, I'll keep my Blogger-owned blog and trust that they will be more polite to those who visit here.
On an aside note, I understand the need for security on a website that does monetary transactions. Wordpress is a good bet for someone who does that, based on all the red tape I have to go through just to enter a giveaway. But even that has failures. I know of a Wordpress Website Builder, Suzanne Bird-Harris, who has several clients that have had their sites hacked. One of these clients had to have her site rebuilt 3 different times. I imagine she didn't like the bill for that.
The best way to avoid hacks into any site where you go to get or give secure information is to have great passwords that you change regularly. I know, it's such a pain, but it's the safest way. You can do it easier by having a combination of CAPITAL LETTERS, lower case letters, numbers, special characters (#$^@$&$&*), and at least 8 characters long. To make the hassle a little easier, you can use add-ons such as SECURE LOGIN for Firefox and other such programs that automatically load and remember all your passwords.
Update 6/21/12 - These days, most of the giveaways I enter are done on Rafflecopter. I, too, have switched over to this nifty little gadget. Entering is a snap and because of it, more people are enticed to enter! Practically gone are the days of low-entry giveaways, although there are still some to be found. But he new definition of a low-entry giveaway is anything under 1200 entries!