Nothing statistically significant on the apps (which I monitor).
Regarding the site a s a whole, signs ups have increased, but this is often not relevant, as spammers attempt to automate account creation which creates spikes all the time. So without filtering those out, the numbers are valueless.
But if things pick up, then great, it will be a useful boost for the site, but the flip side is ad revenue is evaporating right now.*
*Non-subtle marketing : please subscribe if you use the site daily and enjoy it.