> Them actively searching for monetization strategies now seems to indicate an understanding that the capital well is running dry
Before they IPO'd they still had user growth. So they could get money from VCs by selling the "in 6 months we will have X million more users" story.
Now they're public, they don't have a growing user base, and the market expects them to stop losing money. They can't keep losing money forever as the VC option is gone now that they're public.
If I were to peg a time, its when they had many 3rd party applications that hooked into your feed. They killed the integrations off in favor of their own app because Advertising.