How to frame a large poster.... OR NOT

[Rainbow]

I came across this web site and didn't know whether to be horrified or amused:

https://decoradventures.com/how-to-frame-large-poster/

So now we know how to get rid of bubbles when you've spray-mounted a poster to some foamboard

[vintage frames]

Putting the fun back into framing.

[JFeig]

I call this article a horror story

• spray adhesive mounting

• lumber yard moulding - cutting it to size & painting it

• cost of drop cloth and equipment

• no glazing protecting the art

• no accounting for the disruption in home

• adhesive overspray all over the room

• no accounting for their time.

PLUS
I wonder how this will look like in a year or so?

[prospero]

BluTack would be preferable.