Citation needed. I have read hundreds of magazines on wood working. Woodsmith, Shop Notes and two decades of Fine Woodworking among my favourites.
Then I went and searched on if Pine was bad for tools. I found one link on cleaning sap. Zippo on the dangers of Pine.
I do not recall a single caution against using Pine with any tool. Discussions about it being a softwood and limited by that, yes. Often. (Southern Yellow Pine is an exception, closer to a hard wood. But sappy).
Fir as a substitute:
Fir is as much a substitute for Pine as Maple is for Walnut. You buy them in the same stores for about the same price. And that’s the only things they have in common.
Virtues of Pine beyond framing:
Source 1:
Long list of pros.
“While pine is very different than oak, it is also a good choice for furniture, depending on your purpose. It may not last quite as long as oak, but pine is still a strong, shock-resistant material suitable for furniture, particularly if you like the rustic or country styles. Over time, pine gains a patina that gives it an antique-like quality, which is an appealing look to some people. The dents and dings that are bound to show up in the wood just add to that aged look.”
Source 2:
https://www.quora.com/How-good-a-wood-is-pine-for-making-furniture
"Pine has its place in furniture. Due to its cost it is great for inexpensive pieces and great for beginners to learn on.
White Pine was installed in New England homes hundreds of years ago as flooring. Although heavily worn, it can still be found on those same floors today. There has to be something said for that alone!"
Source 3:
"Construction lumber is usually a mixture of spruce, other types of pine, and fir (SPF, for short). These woods are denser and have a more uneven texture than white pine. SPF pieces are also likely to move a lot after they’re sawn, for two reasons.
First, SPF is frequently sawn from small-diameter trees, so boards often contain the pith. Second, construction lumber has a high moisture content (MC). It’s only dried down to about 17 percent MC, so the wood has a ways to go before it stabilizes.
White pine, on the other hand, is often cut from huge trees, far from the pith, and is usually available kiln dried down to 7 to 9 percent MC, ready to be used in
the woodshop.
Once dried, white pine is exceptionally stable and a
pleasure to work. It shrinks and swells less than red oak or hard maple, for example, and is about on par with cherry. It has a uniform texture with inconspicuous growth rings, unlike construction lumber. You won’t have the aggravation of catching an edge while planing or paring through alternating sections of soft earlywood and hard latewood. Your plane or chisel just glides right through the wood–except the knots, of course."