Why? What is the purpose of adding the hints. They dont add anything for accessibility that is what the label is for

Placeholders are suppose to aid the user as to what should be entered in the input field. When there's enough space available, I always stay clear of placeholders in favour of bog standard labels, simple because placeholders can sometimes be a little deceiving. Placeholders are good if the format of the type of data isn't clear or there simply isn't enough space to add a label.

With the registration form, there's loads of space, therefore labels are already being used. The input fields for the registration form are very simple. Personally, I don't need Joomla to tell me how I need to format my name.

If you really want placeholders for a personal site, go for a Template Override.

@C-Lodder +10 plus there are lots of potential usability issues with placeholders so i dont see the need or benefit to change this in the core.

I will keep this open for a while to give @sshcli the opportunity to explain further but as @C-Lodder says if you really want this then you can create your own template override.

In 3.7 you will be able to customise the fields the way you want them, as there will be on a layout file. simply copy the files from /root/joomla/form/fields/*.* to your templates/your_template/html/ folder and do whatever pleases you

I have my own template override.
This is only a suggestion.

Maybe google is wrong:
http://webpage.gq/google.PNG
http://webpage.gq/google2.PNG

Closing as this doesn't aid accessibility and can be achieved with template overides

The only field I'd say that would be good to have a placeholder is the password field ONLY IF you've set some requirements for the password, such as minimum characters, etc.

Each input on the Joomla registration form is standalone and are not split into sub-inputs (e.g First Name - Last Name). Each input has a dedicated label.

Users can add placeholders on their own site if they feel it will be an improvement :)

Ok, understood.
No problem.
Regards,

@brianteeman said: that is what the label is for

Label should be visible when hover the mouse over the field

No thanks. Not going to reinvent the web