I ran a 60GB SSD as my Windows machine's system drive (with pagefile) for four years before it started showing problems, and that machine saw a few hours use almost every day. It was >90-95% full for most of that time.

It depends on how much free space you have on the SSD. But yes, especially because the swap file isn't ssd-aware, you get a high degree of write amplification which wears the disk more than necessary. That being said, newish SSDs can take a beating, even under these kinds of workloads.

BTW I already have 16GB RAM on the machine. The swap file was 32GB.