https://app.singlelink.co/u/hanniabu
At further inspection it looks like with each click of the recursive link it generated 20 tracked links.
It also looks like the analytics doesn't treat each link independently. If I change a link it just relabels it in the analytics rather than creating a new tracking item. Sorry to be raining on your parade and tearing this apart so hard lol.
In regards to analytics, we're currently treating links like "blocks" in preparation for our new link types feature (then a link could be an image, video, form, checkout, plugin, etc.), so if you were to want a new tracking item created it would be recommended to create a new item and delete the old one rather than edit it. In the future, we'll have easy link visibility and duplication settings to make this an easy process. If you have any thoughts on how you'd expect/prefer this to be, let me know!
As for the photo, you can set your image border radius to 0 in appearance to change this! But it's nowhere near as easy to use as I'd like (added days ago), so it's easy to see why this can be overlooked. We're adding presets soon too (small bits of css that can be layered on top of themes, ex: square or circle avatar photo), so maybe we can make these easily selectable from the settings panel? I'll have to reconsider this.
Thanks again for the awesome feedback, it really helps.