I agree that the format defined in the original question is slightly overkill:
Implicit conversion does not affect performance | Database Administrators Stack Exchange
I think the user is trying to develop his own personal style when answering questions on DBA.SE.
I personally find it definitely overloaded from a readability perspective and I think I would revert it back to something less "intrusive".
Likewise, when I started out on DBA.SE and was reading through Q&As I would normally refrain from clicking on links, when I didn't know where it would lead me to. (Think: Ad-Networks, super cookies, trojans, hacked sites,...). It would hinder my "flow of reading".
Yes, I know, the links can be viewed when hovering over the text, but who wants to move ones mouse every time a link is displayed?
Single Reference Link
When I started creating my own questions and answers I started adding a reference link right after the referenced material which would look like this:
Reference: Back Up and Restore of System Databases (SQL Server) (Microsoft Docs)
Group Reference Link List
If I had a bunch of links I'd add a group reference link list at the end of my answer like this:
Tool Reference List
In some cases I will have in-line links in the text and I will then format them like this:
Your friend is sqlcmd (Microsoft Technet)
The links are sort of self-explanatory and everybody knows to which site the link "should" be pointing to.
Editing Other Peoples Posts
When modifying other peoples post, I try to find a less intrusive form of linking. I'll convert pure links to a reference title with link, or add some additional information in parenthesis to improve the quality of the post. In rare cases (I think I've done that once so far) I will add a reference list at the end of the authors post.