Hank Johnson: What caused the XM drought?

Hidden in the Hank Johnson: What caused the XM drought? blog post, we can find these 3 codes:

[1] 43245322133333243315131135444542151521245115123324331555
[2] cyshpor3ectk49p5
[3] 4p59decb8orowboq

Code #1

Observations

There is an even number of digits, all in the range from 1 to 5.

Codes #2 and #3

Observations

Both codes are of equal length and are mirroring each other’s digit/letter structure.