According to https://build-it.io website even when you share your EXPERIENCE of doing things on your own, you can use the #diy tag. You experience of doing things on your own is far more than just the step by step description of the process.
The question, "What is Build-it?" is answered as follows on their website:
QuoteBuild-it is a free speech socials sharing where people can come to learn, share, and earn for sharing their experiences of doing, building, and fixing things on their own. This includes guides to; roofing, carpentry, woodwork, brickwork/stonework,crocheting, recycling, drawing/painting, gardening, tiling and much more! Literally,if you want to improve your DIY skills, this is the best community to start with.
For example, see the postings of @steelbak.
Thanks a ton for the mention!