SmartBlogLibraries 2.1.0 comment model

using System;
using System.ComponentModel.DataAnnotations;
using System.Web;

namespace SmartBlogLibraries.Models
{
    /// <summary>
    /// The model to be used when adding a comment form to SmartBlog.
    /// </summary>
    public class SmartBlogCommentFormModel
    {
        /// <summary>
        /// Name of the person who made the comment.
        /// </summary>
        [Required(ErrorMessage = "Name is required")]
        [RegularExpression(@"^((?!Name).)*$", ErrorMessage = "Name is required")]
        [DataType(DataType.Text)]
        [Display(Name = "Name")]
        public String Name { get; set; }

        /// <summary>
        /// Email of the person who made the comment.
        /// </summary>
        [Required(ErrorMessage = "Email is required")]
        [RegularExpression(@"^(([A-Za-z0-9]+_+)|([A-Za-z0-9]+\-+)|([A-Za-z0-9]+\.+)|([A-Za-z0-9]+\++))*[A-Za-z0-9]+@((\w+\-+)|(\w+\.))*\w{1,63}\.[a-zA-Z]{2,6}$", ErrorMessage = "Invalid Email Address")]
        [DataType(DataType.Text)]
        [Display(Name = "Email")]
        public String Email { get; set; }

        /// <summary>
        /// Website of the person who made the comment.
        /// </summary>
        [DataType(DataType.Text)]
        [Display(Name = "Website")]
        public String Website { get; set; }

        /// <summary>
        /// Comment of the person who made the comment.
        /// </summary>
        [Required(ErrorMessage = "Comment is required")]
        [RegularExpression(@"^(((?!Your Comment).|(Your Comment.).|\n)*)$", ErrorMessage = "Comment is required")]
        [DataType(DataType.MultilineText)]
        [Display(Name = "Comment")]
        public String Comment { get; set; }

        /// <summary>
        /// The value that should be correct before the form is posted.
        /// </summary>
        [Required(ErrorMessage = "Security question is required")]
        [RegularExpression(@"^(4)*$", ErrorMessage = "Invalid security answer")]
        [DataType(DataType.Text)]
        [Display(Name = "Security Question")]
        public String SecurityQuestion { get; set; }
    }
}