Shouldn't all those shilling posts include disclaimer: 'Includes paid promotion'? Sometimes you can see it on YouTube videos, but I haven't seen it anywhere on

Shouldn't all those shilling posts include disclaimer: 'Includes paid promotion'? Sometimes you can see it on YouTube videos, but I haven't seen it anywhere on Instagram so far. Also this situation reminds me about this 'marketing' strategy some companies do, that they are hiring salesmen on some easy-to-break contracts with sole purpose them selling product (most of the time it's some financial bs or insurances) to friends and family, then when their sales drop - fire them.