I'm stumped and now I can't recreate the issue.  If it's happened to me once, it will likely happen again, but I wanted to start a thread on the issue.  In an attempt to fix another issue, I went ahead and upgraded to uBlogsy 2.1.1.0 to 2.1.1.1 on Umbraco 4.7.2.  The last issue to work through was posting a comment simply didn't work. When I attached the debugger, I got an exception referring to a configuration file missing, uLoremsy.config. Noticing it was referring to your other package, I went ahead and installed the uLoremsy package.  I was able to post comments.  In an effort to recreate the exception, I uninstalled the uLoremsy package.  I could still post comments successfully.  I verified the uLoremsy.config file was missing again along with the uLoremsy dll, and I can't get it to fail again.  Since you wrote the packages perhaps you might know what could cause this.  Since I skipped past the debugging thinking I could recreate it, I couldn't so let me provide what I can in the error log:

Could not find file 'C:\Websites\MyCleanLikeAProBlog\wwwroot\config\uLoremsy.config'. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options) at System.IO.StreamReader..ctor(String path, Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize) at System.IO.StreamReader..ctor(String path, Encoding encoding) at System.IO.File.InternalReadAllText(String path, Encoding encoding) at System.IO.File.ReadAllText(String path) at uLoremsy.UmbracoEvents.uLoremsy.Document_New(Document sender, NewEventArgs e) at umbraco.cms.businesslogic.web.Document.NewEventHandler.Invoke(Document sender, NewEventArgs e) at umbraco.cms.businesslogic.web.Document.OnNew(NewEventArgs e) at umbraco.cms.businesslogic.web.Document.MakeNew(String Name, DocumentType dct, User u, Int32 ParentId) at uHelpsy.Core.UmbracoAPIHelper.CreateContentNode(String nodeName, String nodeTypeAlias, Dictionary`2 properties, Int32 parentId, Boolean publish) in D:\_PROJECTS\uHelpsy - Library\trunk\uHelpsy\uHelpsy.Core\UmbracoAPIHelper.cs:line 264 at uBlogsy.BusinessLogic.CommentService.CreateComment(HttpRequest request, Int32 pageId, CommentInfo commentInfo) in C:\Websites\uBlogsy\anthonydotnet-ublogsy-87cb64530504\uBlogsy\uBlogsy.BusinessLogic\CommentService.cs:line 171 at uBlogsy.BusinessLogic.CommentService.SubmitComment(HttpRequest request, Int32 pageId, CommentInfo commentInfo, Boolean subscribe) in C:\Websites\uBlogsy\anthonydotnet-ublogsy-87cb64530504\uBlogsy\uBlogsy.BusinessLogic\CommentService.cs:line 109