There is no direct rule against it but your AHJ might be interested in looking at derating the wire if this is a hot water or steam pipe and there may be an issue with the plumbing or mechanical code if you are using the pipe as support.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .