Change your name infinitely:
1. Download Fiddler from this link:
https://www.telerik.com/download/fiddler and allow it to decrypt HTTPS traffic. (Tools > Fiddler Options > HTTPS > check "decrypt HTTPS traffic" and accept the dialogs)
2. Go to google+ and attempt to post "@107000000000000000000". The post should fail to send.
3. Go back to fiddler and open the composer tab. Drag+Drop the last red item from the left to the "request body" box.
4. Select everything before "&at=" and paste this string in it's place:
6. Replace FIRSTNAMEHERE, LASTNAMEHERE, and GENDERHERE accordingly.
7. Click Execute.