Here is the sys error when I try to set it explicitly to false
User Agent: Mozilla/5.0 (Windows NT 6.1; rv:15.0) Gecko/20100101 Firefox/15.
Server: VT-D676928
Path: /themes/generic/user/createuser.aspx?ReturnUrl=%2Fsample_group%2Fdefault.aspx as HTTP POST
Referrer: http://localhost/user/createuser.aspx?ReturnUrl=/sample_group/default.aspx
Message: An error occurred while rendering the scripted widget 'User - Login And Create - Telstra' (e3535ab3b47f4ba4995172416ce07009).
System.ArgumentException: Could not convert dictionary value for entry EnableCommentNotifications with value false to Int32. If the value is supposed to be a string, it must be enclosed with '' (single quotes)
at NVelocity.Runtime.Parser.Node.ASTStringLiteral.ProcessDictEntry(HybridDictionary map, StringBuilder keyBuilder, StringBuilder value, Boolean isTextContent, IInternalContextAdapter context)
at NVelocity.Runtime.Parser.Node.ASTStringLiteral.RecursiveBuildDictionary(Char[] contents, Int32 fromIndex, IInternalContextAdapter context, Int32& lastIndex)
at NVelocity.Runtime.Parser.Node.ASTStringLiteral.Value(IInternalContextAdapter context)
at NVelocity.Runtime.Parser.Node.ASTSetDirective.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Runtime.Parser.Node.ASTBlock.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Runtime.Parser.Node.ASTElseIfStatement.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Runtime.Parser.Node.ASTIfStatement.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Runtime.Parser.Node.ASTBlock.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Runtime.Parser.Node.SimpleNode.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Runtime.Parser.Node.ASTIfStatement.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Runtime.Parser.Node.SimpleNode.Render(IInternalContextAdapter context, TextWriter writer)
at NVelocity.Template.Merge(IContext context, TextWriter writer)
at Telligent.Evolution.ScriptedContentFragments.Implementations.ScriptedContentFragmentRenderingService...()