Why would I want to use multiple collectors?

Collectors are for the tracking of survey responses. 

Because every collector has its own settings and restrictions, you can modify them as needed for greater control over response collection. Multiple collectors also provide the benefit of reaching different audiences or tracking distinct timeframes with one survey.

Here are some example cases where using multiple collectors would be beneficial:

1. Monthly/quarterly/yearly tracking and trending of the same question sets
2. Comparing different segments of responders - such as responses from different geographic areas or demographics
3. Comparing tracked vs anoymous responses and response rates