Welcome! As a creator, you can enable author watermarks on clips. Watermarks are there for 2 reasons:
1) Protect content from our creators from being copied all over social media without giving proper credit
2) Make it easier for somebody watching your clips on other platforms to start following you on Medal
For more info on the feature, see this announcement.
Only creators can download their clips without watermarks. Watermarks are not very intrusive, and you can even completely turn them off.
If you're working on a montage, or simply don't want the watermark present, you are able to download with or without the Medal watermark. Please note this is only available if you are the original uploader of the content. If you are not the original uploader, you should support the creator and share the video with the watermark. This also works on the mobile app.