To test this I tried out my theory on the webgame NationStates, I had created a country of my own and a backstory, then one day on the forums I revealed myself as a Monarchist and Asked if anyone else was there. The result was graciously varied, from immediate and inevitable shout downs by the communists and liberals who until recently assumed they had dominated those forums, to individuals who would tolerate certain degrees of monarchy, those who wouldn't mind, those who liked to but did not think it'd work, to proper monarchists and royalists of different stripes. You can read about this escapade here.
So what does this mean? All monarchists are in fact cowards when we're caught on our own? Most certainly not, there's plenty historical examples otherwise and even modern examples, if anything monarchists are usually brazen yet seemly people. So what does this mean essentially? This means, both in real life and on the aether, Monarchist are essentially everywhere, we are outnumbered no doubt, but there is more of us then even we are aware, and I assure you we can be found anywhere from intellectual and artistic heights to the depths of scum and villainy, (on such respectable sites, and I use that term HIGHLY in jest, such as the chans, [don't ask], and Something-Awful forums)
We just need to look for them.