What are these checkmark and arrow icons appearing by text throughout the site?

Because not all data at ProZ.com is encoded using Unicode, we are attempting to automatically convert non-Unicode data into Unicode as it is displayed. This conversion is not always accurate because it requires the system to guess the encoding of the original text. The  and  buttons allow viewers to tell the system whether it converted the data correctly.

If the text preceding the buttons appears garbled, please click on the  icon to help the system determine the correct conversion of the data.

If the text is displayed correctly, click on the  icon to tell the system that it guessed correctly.