Is this on-topic? How many 7' long steel levers are there in a typical house?

Seems like a hobby project to me. We seem to get a lot of questions about the strength of materials that are rarely answered well. Might not have the right audience on the site to answer those.

Engineering would probably be a better home, but I don't want to migrate it if it's actually a home improvement thing, just one that I've never encountered before.

A bit late on the discussion, but I feel like we could simply remove the word "Romex" altogether, and substitute "nonmetallic sheathed cable", "Type NM cable", "NM cable" or similar. Correcting romex to "Romex®", seems too much like advertising to me.

When people say "romex", they mean "Type NM cable". They just don't know any better.

What's the SOP for purging comments from answers?

@Tester101 mod > purge all comments

This answer (and others) have loads of comments, none of which really seem helpful.

Undelete any that have merit

I guess I mean. Is it wrong to simply delete comments, just to clean up a "mess"?

Is it an abuse of power to delete comments on my own answers/comments?

Should we have a meta discussion about the Romex® thing? Ask the community what they think?

@Tester101 If you were silencing one side of a debate, then yes. But I don't see anything in those comments that's really worth preserving.