First things first, this is probably worse than Market Forces. That said, this card is largely meant as its replacement, so let's talk about its unique advantages and disadvantages. Removing a tag costs approximately 3 credits to the runner (click and 2c), so Bigger Picture is a 7c swing per tag removed compared to the 6c swing of Market Forces. Economically, this means Bigger Picture's siphon effect is overall a marginally bigger swing than Market Forces. Also, Bigger Picture's tag removal triggers Synapse, if you care about that for...some reason.

If the runner is floating a single tag, the other mode on Bigger Picture can activate 2 tag punishment, notably Shipment from Vladisibirsk.

However, there are some significant problems. A tag is worth significantly more than 3 credits, so the economic calculation isn't actually favourable for Bigger Picture. If anything, the runner's clicks are very valuable for drawing and playing econ cards, so Bigger Picture is quite a bit worse. This also assumes that the runner is on a multiple of 5c. If the runner has some awkward amount like 8c, then you can either leave the runner with 3c of change or inefficiently remove 2 tags.

Yikes.

It also bears, possibly the worst issue, that removing the runner's tags typically turns off your own wincons. IP Enforcement and Shipment require a heavily tagged runner, and helping the runner remove these tags is a suspect proposition. If the runner is tag-me, then Market Forces is simply better than Bigger Picture. A big Market Forces will leave the runner on 0c and a flood of tags, while Bigger Picture frequently gives the runner a way out. All of this said, I would consider running 1x Bigger Picture in NBN Elevation tag decks, because it's still very good against a tag-me runner.