Replace statement creating duplicate lines - powershell

Question

I'm using the code below
$content | ForEach-Object {
$addresseeName = $_.Substring(11,50)
$example = 'X' * 50
if ($_.Substring(0,10) -eq 'ADDRESSEE0')
{
$_ -replace $addresseeName, $example
}
else
{
$_
}
$addresseeName2 = $_.Substring(62,50)
$example = 'Y' * 50
if ($_.Substring(0,10) -eq 'ADDRESSEE0')
{
$_ -replace $addresseeName2, $example
}
else
{
$_
}
Text file before:
ABSINVEST2|Y|N|
ADDRESSEE0|Name Name Letters Letters & Financial | |19 Greemount House |
ADDRSDETAS| | |
Text File After:
ABSINVEST2|Y|N|
ADDRESSEE0|XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX| |19 Greemount House
ADDRESSEE0|Samp less Independent Examples & Exampless s |XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX|19 Greemount House
ADDRSDETAS| | |
I am attempting to mask particular fields (positions). Can anyone help me as to why the line is being duplicated for every IF Else statement?
Updating code I got working:
$content |
ForEach-Object {
$addresseeName = $_.Substring(11,50)
$addresseeName2 = $_.Substring(62,50)
$example = 'X' * 50
if ($_.Substring(0,10) -eq 'ADDRESSEE0')
{
$_.replace($addresseeName, $example).replace($addresseeName2, $example)
}

Answer 1

The short answer is, because you are duplicating it (your current script outputs it twice). Try this instead:
$content | ForEach-Object {
$addresseeName = $_.Substring(11,50)
$example = 'X' * 50
if ($_.Substring(0,10) -eq 'ADDRESSEE0')
{
$_ = $_ -replace $addresseeName, $example
}
$addresseeName2 = $_.Substring(62,50)
$example = 'Y' * 50
if ($_.Substring(0,10) -eq 'ADDRESSEE0')
{
$_ = $_ -replace $addresseeName2, $example
}
$_
}
This modifies the current line variable $_ by setting it when performing the replace and then only outputting it once at the end (whether it has changed or not).