@Molot yaa the restriction is removed except Stack Overflow, Server Fault, Ask Ubuntu and Super User.

For more info check here https://meta.stackexchange.com/questions/111388/new-users-and-attaching-images

> We examined this issue and decided that on most sites, the restriction
> is doing more harm than good. The restriction has therefore simply
> been removed on all sites except Stack Overflow, Server Fault, Ask
> Ubuntu and Super User.