What are some alternatives?
When comparing Imgur and LightShot, you can also consider the following products
Flickr - image and video hosting website
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Photobucket - Photobucket offers image hosting and free photo and video sharing.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Google Photos - All your photos are backed up safely, organized and labeled automatically, so you can find them fast, and share them how you like.
Snagit - Screen Capture Software for Windows and Mac