Sensie Actors Union for Weyland. Compared to SAU:

1. Open Forum has 1 rez cost vs 0 for SAU.
2. Open Forum has 1 extra trash cost.
3. Open Forum is way cheaper to splash. SAU is 2 influence + 3 from MWL , so Open Forum is 2 influence cheaper even in NBN.
4. Open Forum isn't political, you can ice its server.
5. Open Forum is unconditional where SAU is a "you may" effect.
6. Open Forum only draws 1 compared to SAU's 3.
7. Open Forum puts the card you add back on top of R&D where SAU puts it on the bottom.
8. Open Forum reveals the card you've drawn, SAU doesn't.

So aside from some relatively inconsequential differences (1-4) Open Forum is strictly worse than SAU. Considering FFG had to put SAU on the super-MWL (TLA anyone?) because it's so utterly overpowered it's good that Open Forum is less powerful. The big question is just whether it's not underpowered instead.

I think not. Open Forum isn't a great card but I see potential for it in the right decks.

The big thing is that Open Forum puts a card on top of R&D, meaning you can control what's on top of R&D for as long as Open Forum is on the table. Obviously the runner will have a pretty good idea due to all the cards they see and if you use this trick you'll show the runner every single card that goes into your hand (mandatory draw will be the card you've put back so Open Forum will show what would otherwise be the top card) but there's absolutely value in controlling the top of R&D.

That value of course is in ambush cards like Snare!. If the runner knows or suspects you have a Snare! at the top of R&D they'll think twice about a digging trip.

Other than this trick I don't really see much value in Open Forum though. While it gives you more control it doesn't actually let you draw more cards, unlike SAU. And the cost of showing the drawn cards to the runner can easily outweigh any other benefits.

I do see a potential in use in Jinteki however, given that Snare! and Celebrity Gift are in-faction there.