I noticed nobody appears to have answered the question that was asked about whether objects in a bag of holding are counted as moving when the bag moves or if they are in an extradimensional stasis.

If the second is true it allows you to circumnavigate several rules restrictions.

Does anyone know the RAW answer?

It's a private pocket dimension.  But there is a creature called the bag man that moves from one bag if holding to the next. It's a homebrew but very cool.

I filled it with pitons

When in doubt with what type of magic a magic item is, you can always go with Enchantment in a pinch.  However, I'd probably guess Conjuration, since spells like Demiplane are also considered Conjuration.

13

No, as specific beats general.

Placing a bag of holding inside an extradimensional space created by a handy haversack, portable hole, or similar item...

is specific, and as the specific "inside an extradimensional space created by an item", states nothing about the spells Magnificent Mansion or Rope Trick.

mo0nkeysa boefnm

What would happen if you were to cast enlarge/reduce on the bag?

Bag gets bigger/smaller but the pocket dimension does not. 

That sucks, I was really hoping at a minimum the weight you could carry would change. I guess I can’t make a swimming pool with a bag of holding.

Alright, just in case you're feeling real cheesy today, here's how to flush the BBEG down the toilet with bags of holding. You'll need two extradimensional spaces, preferably a bag of holding and a portable hole, and you'll also need a block and tackle.

Step 1: Spread the portable hole on the ground, and set up the block and tackle so it hangs the bag of holding right above it, in an area where the BBEG is probably going to be walking by. For instance, a hallway in their fortress. Have your party rogue stationed so they can manipulate the block and tackle, but are further than 10 feet away from the portable hole, and are hidden.

Step 2: Wait until the BBEG gets within 10 feet of the portable hole.

Step 3: Let go of the block and tackle, so that the bag of holding drops directly into the portable hole.

Step 4: The BBEG doesn't get a save or anything. You may now watch as they are pulled through a random judgement portal and sent flying into the astral plane forever, due to the otherwise completely useless property at the end of this item's description.

Yup, just completely gone with two magic items that aren't even supposed to be used for combat purposes. I don't even know why the designers decided to put that last part there and in the process make this tomfoolery possible. Perhaps a reference to paradox black holes?

Quote from LilSyco >>

pro tip: at the start of a long rest use all of you spell slots by casting whatever spell you want in to the bag. do this for the next few sessions. when you get into a fight, turn the bag inside out toward an enemy and just watch them get incinerated 

 Are you allowed to do this? If so, does the duration still work?

Anyone noticed that the image has a face on it?

I don't know if it's been suggested, but I've just made a "House Rule" concerning these.

All Dimensional boundaries are positively charged, and thus repel one another. Two magic points can be used to "Reverse the Polarity" of the boundary, allowing the standard rules to apply. This lasts only for two rounds.

This protects accidental implosions and destruction of player items and portable locations, but still allows for it to be done deliberately as part of a "Hail Mary" by a player (I'm fairly sure no-one "Wants" to end up in a random location on the Astral Plane)

dadadad

Create a character named bag of holding. 

As the gear to that character

u7u7ugufugytfty

Hello could you tell me what the swords that Drizt do ur den carry’s with him 

Drizzt Do'urden uses Twinkle and Icingdeath. Two Simatars one glows blue(Twinkle) and the other can extinguish fire(Icingdeath).

My Paladin used a bag of holding and a portable hole to stop Tiamat from killing his friends at the end of The Rise of Tiamat. We were all done for and Tiamat was looming over me, so I dumped my portable hole into my bag of holding as she ate me. My paladin died but Tiamat was transported to the astral plane...  the rest of the party then pursued her throughout Spelljammer: Adventures in Space!