Editing question without edit limits [duplicate]

Question

Edits limits _{(Edits must be at least 6 characters; is there something else to improve in this post?)} can be passed easily using html comments.

Testing:

This is what can be done to skip the edit limit:

Using code comment fools the edit and adds them in the number of characters edit. Here is an example:

<!--  -->

This code block is long enough to edit the question without touching anything other. Simply copying and placing it at anywhere in the question can skip the edit limit. These automatically get disappeared because these are html comments.

Benefit:

• Questions can be edited with changes having less than 6 edits

This seems more like a bug to me rather than status-bydesign. It must be detected by the site that the edit is no more than addition to a useless html comment (unless it is in a code block or it is a syntax highlighting comment), so don't let it be edited. The system should let such edits be prohibited.
This will save the time of the reviewers by not adding useless edits in the queue.