The answer to this question is actually simple:
If you're a beginner and want to create a niche classifieds website, with a few hundred users and ads, WordPress will do just fine. These are 99% of all classifieds webmasters. (The fact that you had to ask this question puts you in this category)
However, if you have a goal in mind and plan on scaling to something big, WordPress will become your nightmare prison.
Think of WordPress like something on top of something, which is on top of something else... 🙃
The only websites that I have seen to be/become real big, are either built on customs solutions, or on heavily modified Osclass cores (Trovit, Wallpop etc.).
You have some more examples here: https://www.valueweb.gr/forums/osclass-webmasters-talk/osclass-websites-showcase/
Still, until today, i haven't found a single Wordpress plugin that does the job. All of them are half, with missing features, with paid plugins. In general not good at all.
Not sure what i will do.
