Yes you are right. Don't post it via peakd .
What I suggested was , just upload the image in peakd - once the upload is successful it will give you the image link. Just copy that image link , come to sportstalksocial and paste the image link it will work.
Did it make sense? Or did I confuse you?
No right I got your point, I don't feel comfortable to post a single image on peakd without content but I can use your suggestion and host an image on imgur. Then create my post and use the image link.
That's smart, thank you ;)