No, but you can use ffmpeg to create a GIF from ASCII art embedded in a Hacker News comment:

  $ ffmpeg -v quiet -codecs | egrep -i 'gif|ascii'
   D.V.L. ansi                 ASCII/ANSI art
   DEV..S gif                  CompuServe GIF (Graphics Interchange Format)

(“D” and “E” in the first field indicate support for decoding and encoding)