Some cloud websites instead attachment which require download to see

[gam]

If attachment is image, you can upload it into imgur.com
else if it's a plain text (txt format...), anotepad.com is a one choice. These cloud websites you can use to post instead attachment which require download to see

[cast-fish]

Yes,

You are saying that it's more secure and convenient to share ideas and "information about topics" by
putting the shared information onto a cloud website where all people can see it

(then all don't need to download files)

Thankyou.

V