There are a few things that WILL prevent me from buying products due to the trouble when installing: 1) Excessive amounts of !!!! at the beginning. 2) Non-unique texture names. I tend to mass-install stuff, and I have too much to fix everything. So I do check the readmes before buying when possible, and I don't buy products with one of these two flaws unless it is truly excellent - and most items I would have bought otherwise don't make that bar. So I will say that these practices literally do lose sales.