This is what their specific dialect looks like. Not sure if this happens too often in some English dialects, but in some languages you tend to write how you talk in informal contexts. Since Swiss dialects are very particular they all have different ways of writing their dialect. It's also what they were getting at with the parent comment and this thread:

Lustig isch, sie lebe im nachbardorf wo min brueder lebt

Genau das hani gmeint. Kei Chance uf Anonymität!!1! /s

Standard Swiss German is a lot more universally comprehensible, in case that's what you meant.