After everything it indeed sometimes feels like it comes down to this. They want to see you physically sitting at your desk for at least 8 full hours, that's the only 'measurement' in productivity that most companies seem to care about.
Sick days do get logged, and if I really need more time off I can start burning vacation days. Given the choice, I'd rather spend a shitty sleep deprived unproductive day at work.
Eventually goes up to 10 sick days, but I don't remember when the threshold is. Frankly it's a strange thing to base on seniority, as if newer employees somehow get sick less?
Email/call in sick, stay at home. There is an implicit "stay a little later when you're feeling better and/or make up lost time on the weekend". As long as nothing falls behind it isn't an issue. That's the informal policy. If you were ahead or don't fall behind - the extra hours don't need to be picked up. The only important thing is that things remain on schedule.
Hungover, sick, just don't feel like coming in that day, doesn't really matter.
They only discourage people from keeping contagious colds away and at home which means more get affected and hurt office productivity more!
Also, I recall my time in Japan where I had 0 sick days and 10 PTO days for the year. The explicitly communicated expectation was that PTO was to be reserved for weddings, funerals, and sick days. Also, doing everything possible to not get sick was described as part of your professional obligation.
So even my relatively poor benefits at said SV startup was leagues beyond what I had as a salaryman soldier. ;)
In my experience, managers are particularly good at coming in and spreading germs because they "had an important meeting and so much to do."!
None of that's impossible, but doing it for the whole company is apparently enough effort/money that we haven't done it.
We do have a couple of remote employees, and they're a hassle with our ancient phone system. Once you transfer a call out to them there's no way for them to pass it back to the internal system. It's not a good setup for people who are frequently taking technical calls but need to send ordering/pricing questions to coworkers in customer service and quotations.
So for the rest of the year, say my insomnia shows up and I've been awake since 8 AM the previous day, I go to work anyway. I get maybe two hours of work done all day, but I sit at my desk and that's apparently what's important. That's only happened once this year, but it was Monday this week so it's fresh in my mind.
It's stupid. But I've got one sick day left and I might need it worse come flu season.
There are plenty of things I like about my job, but our time off policy is not among them... In the tech industry I'm guessing this is less common because it's not easy to hire good programmers. In other industries, I doubt it's an unusual experience.