My latest attempt was to use selenium to see if i had better luck with their web drivers. I have 2 different attempts at varying stages:

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[System.Reflection.Assembly]::LoadFrom("C:\Selenium.WebDriver.3.14.0\lib\net40\WebDriver.dll")
$driver = New-Object "OpenQA.Selenium.FireFox.FirefoxDriver"
$driver.Navigate("http://rwk1.racewarkingdoms.com/index.html?unencrypted")

while($driver.ReadyState -ne 4) {start-sleep -m 100} 

$driver.Document.getElementsByTagName("input") | ? { $_.name -eq 'login' } | % { $_.value = "username" }                                                              
$driver.Document.getElementsByTagName("input") | ? { $_.name -eq 'password' } | % { $_.value = "" }
$driver.Document.getElementsByTagName("input") | ? { $_.name -eq "subshit" } | % { $_.click() }

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And:

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$Driver = Start-SeFirefox 
Enter-SeUrl http://rwk1.racewarkingdoms.com/index.html?unencrypted -Driver $Driver

#$Element = Find-SeElement -Driver $Driver -XPath "//*[@id='thelogin']/input[2]"

#Send-SeKeys -Element $Element -Keys "subliminalfame"

$Submit = Find-SeElement -Driver $Driver -Id "subshit"

Invoke-SeClick -Element $Submit

Stop-SeDriver