Hi @MyOtherCarIsAPorsche, I really hope it isn't a scam as I think most of us have enough rubbish going on in our lives at the moment, and I'm sure that you would rather not be giving this headspace.
But I also don't think it is anyone trying to threaten or harm you, because I watch a lot of dramas, and in them the pieces of paper would be cut out letters or words! Yes, I get a lot of my information about how criminals and the police behave from my years of watching dramas and reading psychological thrillers 😂
If I were you I would be a little bit worried as I have a some what anxious mind, and an overactive imagination. However, I have a very boring suggestion about what could have happened in reality, so here goes, and maybe tighten your safety belt as it might be a slightly bumpy ride!
Have you ever mentioned to a family member, a friend, or a work colleague, etc. that your home needs quite a bit of DIY doing to it, and that you would also like to 'freshen' it up a bit? Because some one - maybe an older biddy like me - might think "ooh I've got quite a selection of magazines that have DIY sections, or home improvement articles in them" (as I like to dream about having an Ideal Home, or buying an old cottage that needs renovating, or even building a Grand Designs type of property), "so I wonder if xx would like to have a look at them"?
So, if say your DM was kind enough to visit me sometimes, and she mentioned you were frustrated with your home at the moment, I could quite easily decide to look through my magazines, and the DIY type shop leaflets that keep on coming through my door, and that I subsequently keep on hoarding, and then cut out bits from the magazines that I think might be of interest to you, and add in some of those leaflets from stores that I think might also be of interest to you.
Then when I thought I had gathered enough, I could maybe put them in a bag to send to you (I might have bought quite a few of the posting bags from Temu, as I often send my friends and family odd little things - that I probably thought looked cute or useful on Temu, but which, in the end I never used, and I ran out of space on my shelves for any new ornaments etc. ages ago...).
Being me, I could have easily forgotten about the bag of cuttings I had ready to post to you - sorry! - therefore when I next came upon it, I might have realised that I probably had some new articles, or adverts, or leaflets that you might also find of interest. That could happen another 3 times (at a very big pinch 😉); or maybe I only had those smallish posting bags from temu, and I had gathered so much stuff together for you - in just six hours - that I had to use 5 of the bags (from Temu) to put everything I had collected for you, into them 😳 🤗
Therefore, I ended up sending all 5 of them to you, but unfortunately I was so caught up in my endeavour (I always think of Morse whenever I write or hear that word) that I forgot to put a covering note in with them - I did once (honestly), in real life, forget to sign all the Christmas cards I had sent to my friends, so that last bit isn't as far fetched as it sounds!
I am probably getting ever more senile, or my Parkinsons - yes, I really do have Parkinsons - is playing games with my head again 🙈 I know that my suggestion might be pushing the cause of realism a little bit too far, but please do think OP about whether you could have ever mentioned to anyone about having an interest in at least some of the things in your mysterious bags? 😜😜😜
Ps. I truly hope that you get to the bottom of this mystery very soon, and that it is nothing for you to worry about 🙏💐