Should there be a default currency standard when providing answers?
It is confusing when one answer is provided in USD, the next in EUR and the third in GBP.
When researching some sites show currency based on the users Geolocation, so to find a specific one a proxy is needed, others just show in their local currency, third has all the options, but say that 1 USD = 1 EUR.
Should there be a guideline, best practices for this?