Our team will discuss modifications in the Forum section so that it becomes easier for users who reply to messages to review the last post. Thanks for reporting this issue.
In regard to excluding the codeblocks from spellchecking
in RadEditor: this feature is not available yet. We have posted it for review by the RadEditor product team, and it will be considered as a possible the future enhancement for this control.
Thanks again for your valuable feedback!
All the best,
the Telerik team