How does one locate their previous conversations?
Is there a link to display previous posts?

yes go into your profile. you can click on your name in the top right corner and it will display all the post you made and all the things you commented on. you can also click on your name in a post it will take you to your profile as well.

And you can SEARCH... use "Advanced Search" and you can enter any username as a criteria.

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iClone 7... Character Creator... Substance Designer/Painter... Blender... Audacity...
Desktop (homebuilt) - Windows 10, Ryzen 9 3900x CPU, GTX 1080 GPU (8GB), 32GB RAM, Asus X570 Pro motherboard, 2TB SSD, terabytes of disk space, dual  monitors.
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Couple of words on Advanced search here at the forum (I meant to write about it for a while now).
The forum is a great resource for RL products information, tips, tutorial links.. etc. But it is only useful, when it can be located.
Narrowing the search result down is extremely important and must work as expected.
Otherwise it is a waste of time going through 1000's posts in query result while searching by a single word (worse yet "Any Keywords") criteria.
Unfortunately, the fundamental Advanced search criteria "All Keywords" simply does not work here (it works more like "Exact Match" criteria). Try it yourself and see.

To webmaster - it needs fixing!