I believe someone misuses instructables.com for his own agenda
- Post a mediocre/repeating guide
- Add links to different websites, for example to www.american-home-loan.net as seen in https://www.instructables.com/id/How_to_Convert_AVI_WMV_RM_VOB_to_iPod_PSP_Cell_/
- Have a highly valued site (instructables.com) link to cheap sites
I believe the ??? would eventually be remove the guide and point to some site that seels some crap. This is called a SEO scam if i remember correctly.
So far i have catched 5 different usernames using that scheme (i believe the same person is behind all of them):
Check out the guides, they are basically all the same with a link in the first part at least repeated twice. It all points to the same server and even CMS, however, different hostnames are used.
I would like to hear a second opinion.