Most of the users are either forgetting to add the exclamation mark or maybe deleted the exclamation mark before posting the question/answer.
That's not what happens (at least not in most cases); new users are not allowed to post images on some sites: Which SE sites require 10 reputation points to post images? because it has led to abuse in the past.
I answered this on Meta Stack Exchange at Potential to abuse Imgur?. The short answer is, we don't currently auto-delete, but because we could start doing that at any time, and given that you can get the identical image hosting with a free Imgur account where you would stay in control instead of us, the potential for abuse is low because it just wouldn't ...
Yes, you can.
Either click the 'enter image' button or press Ctrl+G. Then it should get expanded as below:
Make sure you have an image in your clipboard and then simply press the universal paste shortcut Ctrl+V.
It's actually a little bit easier than pomsky points out.
You don't need the URL or to open the image box. You can just:
Right click the image, click "Copy Image"
Then paste that image straight into an edit box.
It'll upload it to the right part of Imgur and insert the link.
New users aren't able to post images (to prevent spam or abusive material) and their posts often end up containing
links to an image: some text here
(source code: [some text here](https://i.stack.imgur.com/99gX9.png))
bare links to an image page like this: https://imgur.com/a/bDrTcpm
The first case is easy to solve: just put a ! in front of the opening ...
List of posts (once you edit a post, remove the http:// so that it's no longer a link, add i after if the Software Center icon is a problem). If an image is dead, do check http://web.archive.org/web/*/<imgurl> to see an archive is available. If it is, then upload the archive, please.
Update the list in https://etherpad.net/p/au-img-cleanup
I modified ...
The problem is that the image is too large. When you are adding an image to your post, even if you choose a link, images are always uploaded to stack.imgur.com.
SE and Imgur have some form of friendly agreement where images are hosted till the end of time, and never expire.
The only way it can work, is the way you actually did it. Insert the image manually ...
They're third party. Look at the src URL of one. Here's muru's:
The jumble there is an MD5 hash of the user's email (failing back to network ID if no email set).
This can be overridden by the profile image. These are uploaded to Imgur (like other images here are)...
You can upload whatever you like (to wherever will host it) and post the URL.
The "upload" in the Upload button, however, is just shorthand for "Upload an image". That is made abundantly clear when you click it.
This is exactly the same with the main sites.
It sounds like you're on a network that's blocking Imgur. That's where all the images are hosted. You can verify that by trying to visit them. That would explain why the pop-up isn't working and why you can't view images.
You could upload the images to another host but Stack Exchange has an arrangement with Imgur to host files permanently. This is so we don'...
Ask Ubuntu has a built-in image uploader:
If you use it with less than 10 reputation, it will add them as links to your post; this is to prevent abuse. However, you can hope another user will convert them to properly inlined images.
SE doesn't sort of doesn't host the images, Imgur does:
Also, it may be more likely that it checks if the links are on the SE sites, or how many request for each image there are before deleting them - so as you have linked that image, it may not be deleted.
From Imgur FAQ:
As long as images are getting at least 1 ...