You are right but that's not the only reason. Another reason why the image you uploaded didn't appear despite of having a middle-ranked or high-ranked account is that you copied the wrong url. You must copy the direct url from the image uploading website (e.g. Imgur) you used.
That's right too but advising them to go through bitcoin faucets is not a good idea at all simply because it such a waste of your time and effort. In short, it is inefficient way of earning crypto. Much better if they will engage with long term investment to btc as a start of their crypto journey.
Actually, this act is called ban evasion and not tolerated here in this forum. Check this out, number 25 in the Forum Rules:
https://bitcointalk.org/index.php?topic=703657.msg7955645#msg7955645.

So for the future evaders out there, be fearful .