Working remotely, especially when your team is distributed across the globe, means working asynchronously, that is, across time zones. This is a skill.
Don't assume that others know what you're talking about. Provide some clarifying context. Then, re-read your question, trying to identify the places that you make assumptions, and anticipate any issues that may result.
Include links to your references to ensure they're looking at the same thing you are.
Small talk allows people to stay in the loop with work projects. Posting updates about what you're working on allows for better alignment with the rest of your team.
It will enable others to review any conversations they may have missed and contribute to in their own time. Be sure to have a system for it, like an internal blog.
If you are in Denver and the person you're asking is in Perth, waiting for approval or 100 percent certainty will slow every decision down by one day.
As long as there's no irreversible risk, act first. You can always adjust later.
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