> Where can I make requests to reopen questions on the Super User main Stack Exchange?

Right here on Meta. This is what the tag guidance says for [meta-tag:reopen-request]:

> Requests to have closed questions reopened by community or a moderator. Please include arguments – why should the question be reopened? 

---
> I had such a [request][1] closed as off-topic and I don't understand why.

You don't give a request (or reasons) to reopen it. It's titled *"Heavy Handed Moderation"* and you spend the majority of the question body calling out a moderator's actions as "unwarranted pedantry". You added a sentence requesting it get *migrated* (*not* reopened, btw) as a secondary point to the rant - **after** it was already closed.

A proper request, for your specific circumstance, would look something like this:

---
> ### Please consider migrating this question to Engineering SE
> I have the following question about LED screen technology [link to deleted question], which was closed as off-topic. Despite clarifying edits it remained closed, and is now deleted.
> 
> I have determined that it's on topic at Engineering SE [link to Engineering meta], and I'd like it to be migrated there. Can a moderator please undelete & migrate it there instead?
>
> [meta-tag:discussion] [meta-tag:migration]
---

This is not a guarantee that the request would be handled the way you want it to be - you'd have to be willing to accept 'no' as an answer.


  [1]: https://meta.superuser.com/q/15291/107240