One Laotian group's opinion regarding Thais

It's interesting to see this Facebook paged created by one Laotian's group to express their opinions about Thais as their neighbor:

I hate Thailand that always looks down on Laos

Siam must not steal other countries' land anymore because nowadays there is international justice not like before. You Siam robbers should be in prison.

Siam must shut their mouth for now and stop looking down on others. Siem should solve their internal conflict first before interfere with other countries or you will be hated everywhere around you and your country will be dissolved quickly in no time

Siam = olo

Honestly, I don't understand the meaning of the last phrase "Siam = olo". Anyone knows what does it mean?

The Facebook page is linked here.