I'm going to jump back in on this topic again with an example of the majority viewpoint which I support - about not taking a stamp off a cover, ever.
First off--I think the stirring of things is good. all respect is intended in my viewpoint below. Thesis plus Antithesis = Synthesis and the Platonic way.
Secondly, every one should be able to do whatever they want.
So, jumping right to it is this cover which I got as a throw away and overpaid at $2. I was toying with floating off the #82 Newfoundland, thinking the Catalog value would be $7.50 and while the cover is cataloged at $15 would not be because the envelope is crap and half missing. so I got my scissors ready (maybe i'll cut off the perfs too and make it an imperforate because hey, its my hobby so why even have perfs at all? hmh)

And then I saw both a small town cancel on the front (Cupid population of 562 in 1900)...and started thinking maybe this could make it more valuable to have...and make my hobby more fun?
And then my scissors came near the year of 1900 and I thought, wow maybe having a piece of information to actually date the stamp would be better than floating it?
but wait...check out the back:

There was a strange clear cancel from "CB Railway TPO". What the heck is a TPO? Then I grabbed my Ludlow Railway Catalog and identified it as N26 cancel with a rarity factor of 370 (500 being extremely rare). So BANG. Suddenly, I realized that it was worth more with the cover and way more of a fun hobby...
or not? how is that for stirring it up?
while you all ponder this, I will have to sign off because i've got work to do
1. Throwing away all the dust sleeves from my rare books. They are annoying, make it hard to store and get in the way of reading.
2. Cutting out of their frames and making smaller all my Rembrandt paintings
3. Recording digitally all my Beatle original 33 records from the 1960s, so that I can throw the pesky things away (and enjoy the music only)
4. Break open my Ty Cobb signed baseball from the plastic so that I can toss it around.
5. Then i'm going to pay my mortgage with my Morgan silver dollars
Cheers