I want to improve readability of my syslog output by removing my hostname from every line logged. It's useless to me. Let's assume my hostname is john.corp.company.com

I run this command: sudo grc tail -f /var/log/syslog

To get logs on my terminal shell in realtime. What I tried:

sudo grc tail -f /var/log/syslog | sed 's/^john\.corp\.company\.com[[:blank:]]*//'

But then I lost the coloring that grc provides. I also tried similar commands with 'cut', 'awk', but those commands while they may do the job, I lose the coloring, and I really want to see the process in red, which is what GRC gives me.

At the end of the day, my goal is to get a realtime log of /var/log/syslog that is more readable, without the hostname, and even without the microseconds, as that makes the log line long as well, all I want to see really is the process name, and the message, and the time in seconds.

But question specifically here is how do I use grc still, remove the hostname from the output, and still have it redirect to stdout ?

And to think I spend time removing the mickey-mouse coloured aliases distros insist on inflicting on me ...

The colouring will be dependant on the output being a TERM - therefore it will need to be the last element of the pipe chain. The manpage states it is merely a front-end, so I suspect if you call grcat directly your wish will be possible.
Untested.

yes, you need to reverse the order:
Don't forget, grc should be the last in the chain, otherwise you have no colors.

<joke>
set your hostname to ''
</joke>