@p
>and also there are not many (any?) reasons to do it like this.
If it was a full nginx restart, I could find exactly one reason for it. nginx sometimes just stops working properly and that would allow mods/jannies to restart it without having shell access to the box. For reload, I don't see any reasons.

>it's that suid is *always* a suspicious thing
Yet very few people care to check what they do when new suid binaries show up in projects. Most packagers don't bother to check.