Influencer platforms can indeed be effective for running global campaigns, by helping to manage some of the associated complexities. Different platforms offer varying features and capabilities that can make global campaigns run smoother and more efficiently. Here are a few ways in which they can help:

1. Influencer Discovery: Platforms like Flinque have databases of influencers from different countries and regions, allowing brands to discover and connect with influencers who can reach varied demographics across the globe.

2. Campaign Planning and Strategy: Many platforms have planning tools, which can guide the phases of the campaign including when to launch it in specific regions. For example, AspireIQ offers a content calendar, while Flinque has a feature that informs users of best posting times.

3. Performance Tracking and Analytics: Tracking performance in multiple locations can be challenging, but platforms can provide geographically-specific analytics which help brands measure campaign effectiveness in each region or globally.

4. Workflow Management: Running campaigns in multiple countries involves working with influencers in different time zones and speaking different languages. Platforms like Traackr can help manage this with their Influencer Relationship Management feature.

That said, the effectiveness of a platform in running global campaigns also depends on the specific needs and constraints of a campaign. Therefore, brands should assess their requirements and choose a platform accordingly. Flinque, for instance, is particularly strong at providing in-depth insights on audience demographics and influencer performance, which can be invaluable for global campaigns.