Most of the so-called chumra creep listed above don’t exist in real life other than as exaggerations by those who don’t like the idea of chumros altogether. Let’s take some examples:
“Shidduchim must only be made by a registered Shaddchan from the Yated Shidduch Forum.”
“Girls must walk in pairs ONLY”
I’ve never heard of anyone anywhere anyhow imposing such conditions. It seems purely mockery. The second one above may exist in some limited circumstance for all I know (perhaps when a girls camp goes hiking so no girl should get lost) but to imply anyone imposes it as a hard rule at all times and demands all women follow it, is a joke.