we have to develop DApps for short communication.

Yes, dApps for it would be great.

Despite blogging is ok, this kind of content is not currently on the trend type.

I disagree. There is a return to long podcasts and essays. However it is also going to depend on the individual - just because something isn't in trend, it doesn't mean it doesn't generate value in small groups. Often, it is the small niche markets that generate the most per capita. That is an important factor in a decentralized community, not very important for a mass market centralized social media like Facebook where there is only passing trends.